Remove unneeded zeroing TLS (#4480)

kotlin-native/runtime/src/main/cpp/Runtime.cpp

@@ -224,11 +224,6 @@ KBoolean Konan_Platform_isDebugBinary() {
   return KonanNeedDebugInfo ? true : false;
 }
 
-void Kotlin_zeroOutTLSGlobals() {
-  if (runtimeState != nullptr && runtimeState->memoryState != nullptr)
-    InitOrDeinitGlobalVariables(DEINIT_THREAD_LOCAL_GLOBALS, runtimeState->memoryState);
-}
-
 bool Kotlin_memoryLeakCheckerEnabled() {
   return g_checkLeaks;
 }

kotlin-native/runtime/src/main/cpp/Runtime.h

@@ -31,9 +31,6 @@ void Kotlin_deinitRuntimeIfNeeded();
 // Appends given node to an initializer list.
 void AppendToInitializersTail(struct InitNode*);
 
-// Zero out all Kotlin thread local globals.
-void Kotlin_zeroOutTLSGlobals();
-
 bool Kotlin_memoryLeakCheckerEnabled();
 
 bool Kotlin_cleanersLeakCheckerEnabled();

kotlin-native/runtime/src/main/cpp/Worker.cpp

@@ -815,10 +815,6 @@ void* workerRoutine(void* argument) {
     if (worker->processQueueElement(true) == JOB_TERMINATE) break;
   } while (true);
 
-  // Runtime deinit callback could be called when TLS is already zeroed out, so clear memory
-  // here explicitly. to make sure leak detector properly works.
-  Kotlin_zeroOutTLSGlobals();
-
   return nullptr;
 }