[ObjCExport] Remove 'Enum.clone' method special case (AA)

This clone method showed up in K1 because of the test setup
being not close enough to production.

KT-65670

native/objcexport-header-generator/impl/analysis-api/src/org/jetbrains/kotlin/objcexport/translateToObjCClass.kt

@@ -6,7 +6,6 @@ import org.jetbrains.kotlin.analysis.api.symbols.markers.KtSymbolWithModality
 import org.jetbrains.kotlin.analysis.api.types.KtNonErrorClassType
 import org.jetbrains.kotlin.backend.konan.objcexport.*
 import org.jetbrains.kotlin.descriptors.Modality
-import org.jetbrains.kotlin.name.StandardClassIds
 import org.jetbrains.kotlin.objcexport.analysisApiUtils.isVisibleInObjC
 
 context(KtAnalysisSession, KtObjCExportSession)
@@ -34,11 +33,6 @@ fun KtClassOrObjectSymbol.translateToObjCClass(): ObjCClass? {
             this += buildCompanionProperty()
         }
 
-        /* Special case so far: Just for 'Enum' we actually want to add this clone method to match K1 */
-        if (classIdIfNonLocal == StandardClassIds.Enum) {
-            this += cloneMethod
-        }
-
         this += getCallableSymbolsForObjCMemberTranslation()
             .sortedWith(StableCallableOrder)
             .mapNotNull { it.translateToObjCExportStub() }
@@ -118,13 +112,3 @@ internal fun KtNonErrorClassType.getSuperClassName(): ObjCExportClassOrProtocolN
     val classSymbol = expandedClassSymbol ?: return null
     return classSymbol.getObjCClassOrProtocolName()
 }
-
-private val cloneMethod = ObjCMethod(
-    selectors = listOf("clone"),
-    comment = ObjCComment(contentLines = listOf("@note This method has protected visibility in Kotlin source and is intended only for use by subclasses.")),
-    origin = null,
-    returnType = ObjCIdType,
-    parameters = emptyList(),
-    isInstanceMethod = true,
-    attributes = listOf(swiftNameAttribute("clone()"))
-)