[FE 1.0] 2/2 Drop AllowDifferentMembersInActual from compiler and testData

The annotation was dropped in the previous commit

compiler/frontend/src/org/jetbrains/kotlin/resolve/checkers/ActualClassifierMustHasTheSameMembersAsNonFinalExpectClassifierChecker.kt

@@ -88,8 +88,6 @@ private fun checkExpectActualScopeDiff(
     }
 }
 
-private val allowDifferentMembersInActualFqn = FqName("kotlin.AllowDifferentMembersInActual")
-
 @OptIn(ExperimentalContracts::class)
 internal fun matchActualWithNonFinalExpect(
     declaration: KtDeclaration,
@@ -114,10 +112,6 @@ internal fun matchActualWithNonFinalExpect(
 
     if (!descriptor.isActual) return null
 
-    with(OptInUsageChecker) {
-        if (declaration.isDeclarationAnnotatedWith(allowDifferentMembersInActualFqn, context.trace.bindingContext)) return null
-    }
-
     val actual = when (descriptor) {
         is ClassDescriptor -> descriptor
         is TypeAliasDescriptor -> descriptor.classDescriptor