Remove unnecessary overrides of "dependsOnFileContent".

GitOrigin-RevId: b076a7b308b99abcd1306fd90d06ba1d4ebd000e

plugins/groovy/groovy-psi/src/org/jetbrains/plugins/groovy/lang/resolve/GroovyTraitFieldsFileIndex.java

@@ -82,11 +82,6 @@ public class GroovyTraitFieldsFileIndex
     return FILTER;
   }
 
-  @Override
-  public boolean dependsOnFileContent() {
-    return true;
-  }
-
   @Override
   public int getVersion() {
     return 5;