revert: try to fix java 18 build issue

git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1898908 13f79535-47bb-0310-9956-ffa450edef68

poi-ooxml-lite-agent/build.gradle

@@ -89,8 +89,3 @@ spotbugsMain.enabled = false
 javadoc.enabled = false
 javadocJar.enabled = false
 
-forbiddenApis {
-  //java 18 build issues
-  ignoreFailures = true
-}
-