[FE 1.0] Drop ArrayLiteralsInAnnotations feature

This feature was introduced in 1.2, so now it's stable part of language
  and we can drop support of disabling it

compiler/frontend/src/org/jetbrains/kotlin/resolve/CollectionLiteralResolver.kt

@@ -42,8 +42,6 @@ class CollectionLiteralResolver(
             context.trace.report(UNSUPPORTED.on(collectionLiteralExpression, "Collection literals outside of annotations"))
         }
 
-        checkSupportsArrayLiterals(collectionLiteralExpression, context)
-
         return resolveCollectionLiteralSpecialMethod(collectionLiteralExpression, context)
     }
 
@@ -81,13 +79,6 @@ class CollectionLiteralResolver(
         return memberScopeOfKotlinPackage.getContributedFunctions(callName, KotlinLookupLocation(expression))
     }
 
-    private fun checkSupportsArrayLiterals(expression: KtCollectionLiteralExpression, context: ExpressionTypingContext) {
-        if (isInsideAnnotationEntryOrClass(expression) &&
-            !languageVersionSettings.supportsFeature(LanguageFeature.ArrayLiteralsInAnnotations)) {
-            context.trace.report(UNSUPPORTED_FEATURE.on(expression, LanguageFeature.ArrayLiteralsInAnnotations to languageVersionSettings))
-        }
-    }
-
     private fun isInsideAnnotationEntryOrClass(expression: KtCollectionLiteralExpression): Boolean {
         val parent = PsiTreeUtil.getParentOfType(expression, KtAnnotationEntry::class.java, KtClass::class.java)
         return parent is KtAnnotationEntry || (parent is KtClass && parent.isAnnotation())