Clean up mysql service in drone (#13145)

.drone.yml

@@ -113,18 +113,6 @@ services:
     environment:
       MYSQL_ALLOW_EMPTY_PASSWORD: yes
       MYSQL_DATABASE: test
-      GOPROXY: off
-      TAGS: bindata sqlite sqlite_unlock_notify
-      GITLAB_READ_TOKEN:
-        from_secret: gitlab_read_token
-    depends_on:
-      - build
-    when:
-      branch:
-        - master
-      event:
-        - push
-        - pull_request
 
   - name: mysql8
     pull: default