SONAR-15644 Remove CSS plugin (#4975)

CSS analysis is integrated into the javascript plugin

build.gradle

       dependency 'com.sonarsource.slang:sonar-apex-plugin:1.8.3.2219'
       dependency 'com.sonarsource.swift:sonar-swift-plugin:4.3.2.5043'
       dependency 'com.sonarsource.tsql:sonar-tsql-plugin:1.5.1.4340'
-      dependency 'org.sonarsource.config:sonar-config-plugin:1.0.0.32'
-      dependency 'org.sonarsource.css:sonar-css-plugin:1.4.2.2002'
+      dependency 'org.sonarsource.config:sonar-config-plugin:1.0.0.32'      
       dependency 'org.sonarsource.dotnet:sonar-csharp-plugin:8.29.0.36737'
       dependency 'org.sonarsource.dotnet:sonar-vbnet-plugin:8.29.0.36737'
       dependency 'org.sonarsource.flex:sonar-flex-plugin:2.6.2.2641'

server/sonar-docs/src/pages/analysis/languages/css.md

----
-title: CSS
-url: /analysis/languages/css/
----
-
-
-
-## Prerequisites
-In order to analyze CSS code, you need to have Node.js >= 8 installed on the machine running the scan. Set property `sonar.nodejs.executable` to an absolute path to Node.js executable, if standard `node` is not available.
-
-If you have a community plugin that handles CSS installed on your SonarQube instance it will conflict with SonarCSS, so it should be removed.
-
-## Language-Specific Properties
-
-Discover and update the CSS-specific [properties](/analysis/analysis-parameters/) in: <!-- sonarcloud -->Project <!-- /sonarcloud -->**[Administration > General Settings > CSS](/#sonarqube-admin#/admin/settings?category=css)**
-
-## Related Pages
-* [Importing External Issues](/analysis/external-issues/) (StyleLint.io)

server/sonar-docs/src/pages/analysis/languages/overview.md

 
 SonarQube provides analysis of different languages depending on the edition you're running.
 
-| Language                             | Community Edition      | Developer Edition      | Enterprise Edition and Data Center Edtion |
-| ------------------------------------ | ---------------------- | ---------------------- | ----------------------------------------- |
+| Language                                      | Community Edition      | Developer Edition      | Enterprise Edition and Data Center Edtion |
+| --------------------------------------------- | ---------------------- | ---------------------- | ----------------------------------------- |
 | [ABAP](/analysis/languages/abap/)             |                        | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [Apex](/analysis/languages/apex/)             |                        |                        | ![](/images/check.svg)                    |
 | [C#](/analysis/languages/csharp/)             | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [C](/analysis/languages/cfamily/)             |                        | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [C++](/analysis/languages/cfamily/)           |                        | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [COBOL](/analysis/languages/cobol/)           |                        |                        | ![](/images/check.svg)                    |
-| [CSS](/analysis/languages/css/)               | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |
+| [CSS](/analysis/languages/javascript/)        | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [Flex](/analysis/languages/flex/)             | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [Go](/analysis/languages/go/)                 | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |
 | [Java](/analysis/languages/java/)             | ![](/images/check.svg) | ![](/images/check.svg) | ![](/images/check.svg)                    |

server/sonar-docs/static/SonarCloudNavigationTree.json

           "/analysis/languages/csharp/",
           "/analysis/languages/cfamily/",
           "/analysis/languages/cobol/",
-          "/analysis/languages/css/",
           "/analysis/languages/flex/",
           "/analysis/languages/go/",
           "/analysis/languages/html/",

server/sonar-docs/static/SonarQubeNavigationTree.json

 [
   {
     "title": "Requirements",
-    "children": [
-      "/requirements/requirements/",
-      "/requirements/hardware-recommendations/"
-    ]
+    "children": ["/requirements/requirements/", "/requirements/hardware-recommendations/"]
   },
   {
     "title": "Analyzing Source Code",
           "/analysis/languages/csharp/",
           "/analysis/languages/cfamily/",
           "/analysis/languages/cobol/",
-          "/analysis/languages/css/",
           "/analysis/languages/flex/",
           "/analysis/languages/go/",
           "/analysis/languages/html/",
       "/analysis/generic-test/",
       {
         "title": "Importing External Issues",
-        "children": [
-		  "/analysis/external-issues/",
-		  "/analysis/generic-issue/"
-		]
+        "children": ["/analysis/external-issues/", "/analysis/generic-issue/"]
       },
       "/analysis/background-tasks/",
-	  "/analysis/pull-request/",
+      "/analysis/pull-request/",
       {
         "title": "Branches",
-        "children": [
-          "/branches/overview/",
-          "/branches/branches-faq/"
-        ]
+        "children": ["/branches/overview/", "/branches/branches-faq/"]
       },
-	  {
+      {
         "title": "CI Integration",
         "children": [
           "/analysis/ci-integration-overview/",
-		  "/analysis/jenkins/",
-		  "/analysis/codemagic/"
+          "/analysis/jenkins/",
+          "/analysis/codemagic/"
         ]
       },
       "/analysis/scm-integration/",
     "children": [
       "/analysis/github-integration/",
       "/analysis/gitlab-integration/",
-	  {
+      {
         "title": "Bitbucket Integration",
-        "children": [
-          "/analysis/bitbucket-integration/",
-		  "/analysis/bitbucket-cloud-integration/"
-        ]
+        "children": ["/analysis/bitbucket-integration/", "/analysis/bitbucket-cloud-integration/"]
       },
       "/analysis/azuredevops-integration/"
-	 ]
+    ]
   },
   {
     "title": "User Guide",
       {
         "title": "Rules",
         "children": [
-		  "/user-guide/rules/",
-		  "/user-guide/security-rules/",
-		  "/user-guide/built-in-rule-tags/"
+          "/user-guide/rules/",
+          "/user-guide/security-rules/",
+          "/user-guide/built-in-rule-tags/"
         ]
       },
       {
         "title": "User Account",
-        "children": [
-		  "/user-guide/user-account/",
-		  "/user-guide/user-token/"
-        ]
+        "children": ["/user-guide/user-account/", "/user-guide/user-token/"]
       },
       "/user-guide/issues/",
       "/user-guide/security-hotspots/",
       "/project-administration/project-existence/",
       "/project-administration/managing-project-history/",
       "/project-administration/narrowing-the-focus/",
-	  "/project-administration/new-code-period/",
-	  "/project-administration/managing-portfolios/",
-	  "/project-administration/managing-applications/",
+      "/project-administration/new-code-period/",
+      "/project-administration/managing-portfolios/",
+      "/project-administration/managing-applications/",
       "/project-administration/portfolio-pdf-configuration/",
       "/project-administration/project-settings/",
       "/project-administration/webhooks/"

server/sonar-docs/static/StaticNavigationTree.json

   "/setup/get-started-2-minutes/",
   {
     "title": "Requirements",
-    "children": [
-      "/requirements/requirements/",
-      "/requirements/hardware-recommendations/"
-    ]
+    "children": ["/requirements/requirements/", "/requirements/hardware-recommendations/"]
   },
   {
     "title": "Setup and Upgrade",
       "/setup/install-server/",
       {
         "title": "Configure and Operate a Server",
-        "children": [
-		  "/setup/operate-server/",
-		  "/setup/environment-variables/"
-        ]
+        "children": ["/setup/operate-server/", "/setup/environment-variables/"]
       },
       "/setup/install-plugin/",
       "/setup/install-cluster/",
       "/setup/operate-cluster/",
-            {
+      {
         "title": "Deploy on Kubernetes",
-        "children": [
-		  "/setup/sonarqube-on-kubernetes/",
-		  "/setup/sonarqube-cluster-on-kubernetes/"
-        ]
+        "children": ["/setup/sonarqube-on-kubernetes/", "/setup/sonarqube-cluster-on-kubernetes/"]
       },
       {
         "title": "Upgrade the Server",
-        "children": [
-		  "/setup/before-you-upgrade/",
-		  "/setup/upgrading/"
-        ]
+        "children": ["/setup/before-you-upgrade/", "/setup/upgrading/"]
       },
       "/setup/upgrade-notes/",
       "/setup/troubleshooting/"
           "/analysis/languages/csharp/",
           "/analysis/languages/cfamily/",
           "/analysis/languages/cobol/",
-          "/analysis/languages/css/",
           "/analysis/languages/flex/",
           "/analysis/languages/go/",
           "/analysis/languages/html/",
       "/analysis/generic-test/",
       {
         "title": "Importing External Issues",
-        "children": [
-		  "/analysis/external-issues/",
-		  "/analysis/generic-issue/"
-		]
+        "children": ["/analysis/external-issues/", "/analysis/generic-issue/"]
       },
       "/analysis/background-tasks/",
-	  "/analysis/pull-request/",
+      "/analysis/pull-request/",
       {
         "title": "Branches",
-        "children": [
-          "/branches/overview/",
-          "/branches/branches-faq/"
-        ]
+        "children": ["/branches/overview/", "/branches/branches-faq/"]
       },
-	  {
+      {
         "title": "CI Integration",
         "children": [
           "/analysis/ci-integration-overview/",
-		  "/analysis/jenkins/",
-		  "/analysis/codemagic/"
+          "/analysis/jenkins/",
+          "/analysis/codemagic/"
         ]
-	  },
+      },
       "/analysis/scm-integration/",
       "/analysis/security_configuration/",
       "/analysis/analysis-with-java-11/"
     "children": [
       "/analysis/github-integration/",
       "/analysis/gitlab-integration/",
-	  {
+      {
         "title": "Bitbucket Integration",
-        "children": [
-          "/analysis/bitbucket-integration/",
-		  "/analysis/bitbucket-cloud-integration/"
-        ]
+        "children": ["/analysis/bitbucket-integration/", "/analysis/bitbucket-cloud-integration/"]
       },
       "/analysis/azuredevops-integration/"
-	 ]
+    ]
   },
   {
     "title": "User Guide",
       {
         "title": "Rules",
         "children": [
-		  "/user-guide/rules/",
-		  "/user-guide/security-rules/",
-		  "/user-guide/built-in-rule-tags/"
+          "/user-guide/rules/",
+          "/user-guide/security-rules/",
+          "/user-guide/built-in-rule-tags/"
         ]
       },
       {
         "title": "User Account",
-        "children": [
-		  "/user-guide/user-account/",
-		  "/user-guide/user-token/"
-        ]
+        "children": ["/user-guide/user-account/", "/user-guide/user-token/"]
       },
       "/user-guide/issues/",
       "/user-guide/security-hotspots/",
       "/project-administration/project-existence/",
       "/project-administration/managing-project-history/",
       "/project-administration/narrowing-the-focus/",
-	  "/project-administration/new-code-period/",
-	  "/project-administration/managing-portfolios/",
-	  "/project-administration/managing-applications/",
+      "/project-administration/new-code-period/",
+      "/project-administration/managing-portfolios/",
+      "/project-administration/managing-applications/",
       "/project-administration/portfolio-pdf-configuration/",
       "/project-administration/project-settings/",
       "/project-administration/webhooks/"

sonar-application/bundled_plugins.gradle

-dependencies {
-    bundledPlugin 'org.sonarsource.css:sonar-css-plugin@jar'
+dependencies {    
     bundledPlugin "org.sonarsource.dotnet:sonar-csharp-plugin@jar"
     bundledPlugin "org.sonarsource.dotnet:sonar-vbnet-plugin@jar"
     bundledPlugin 'org.sonarsource.flex:sonar-flex-plugin@jar'