Fixup for 3904fe8 (AST: Centralize ABI-related deployment target checks)

Author: kubamracek

lib/Basic/LangOptions.cpp

@@ -375,37 +375,3 @@ std::pair<bool, bool> LangOptions::setTarget(llvm::Triple triple) {
 
   return { false, false };
 }
-
-bool LangOptions::doesTargetSupportObjCMetadataUpdateCallback() const {
-  if (Target.getArchName() == "arm64e")
-    return true;
-  if (Target.isMacOSX())
-    return !Target.isMacOSXVersionLT(10, 14, 4);
-  if (Target.isiOS()) // also returns true on tvOS
-    return !Target.isOSVersionLT(12, 2);
-  if (Target.isWatchOS())
-    return !Target.isOSVersionLT(5, 2);
-
-  // Don't assert if we're running on a non-Apple platform; we still
-  // want to allow running tests that -enable-objc-interop.
-  return false;
-}
-
-bool LangOptions::doesTargetSupportObjCGetClassHook() const {
-  return doesTargetSupportObjCMetadataUpdateCallback();
-}
-
-bool LangOptions::doesTargetSupportObjCClassStubs() const {
-  if (Target.getArchName() == "arm64e")
-    return true;
-  if (Target.isMacOSX())
-    return !Target.isMacOSXVersionLT(10, 15);
-  if (Target.isiOS()) // also returns true on tvOS
-    return !Target.isOSVersionLT(13);
-  if (Target.isWatchOS())
-    return !Target.isOSVersionLT(6);
-
-  // Don't assert if we're running on a non-Apple platform; we still
-  // want to allow running tests that -enable-objc-interop.
-  return false;
-}