diff --git a/projects/clr/rocclr/platform/runtime.cpp b/projects/clr/rocclr/platform/runtime.cpp
index 5aa0b8ec9b..eff552d54a 100644
--- a/projects/clr/rocclr/platform/runtime.cpp
+++ b/projects/clr/rocclr/platform/runtime.cpp
@@ -119,40 +119,4 @@ uint ReferenceCountedObject::release() {
   return newCount;
 }
 
-#ifdef _WIN32
-#ifdef DEBUG
-static int reportHook(int reportType, char* message, int* returnValue) {
-  if (returnValue) {
-    *returnValue = 1;
-  }
-  std::cerr << message;
-  ::exit(3);
-  return TRUE;
-}
-#endif  // DEBUG
-
-extern "C" BOOL WINAPI DllMain(HINSTANCE hinst, DWORD reason, LPVOID reserved) {
-  switch (reason) {
-    case DLL_PROCESS_ATTACH:
-#ifdef DEBUG
-      if (!::getenv("AMD_OCL_ENABLE_MESSAGE_BOX")) {
-        _CrtSetReportHook(reportHook);
-        _set_error_mode(_OUT_TO_STDERR);
-      }
-#endif  // DEBUG
-      break;
-    case DLL_PROCESS_DETACH:
-      amd::shutDown();
-      break;
-    case DLL_THREAD_DETACH: {
-      amd::Thread* thread = amd::Thread::current();
-      delete thread;
-    } break;
-    default:
-      break;
-  }
-  return true;
-}
-#endif
-
 }  // namespace amd
diff --git a/projects/clr/rocclr/platform/runtime.hpp b/projects/clr/rocclr/platform/runtime.hpp
index 3f33dfd455..45e15523b6 100644
--- a/projects/clr/rocclr/platform/runtime.hpp
+++ b/projects/clr/rocclr/platform/runtime.hpp
@@ -82,8 +82,6 @@ public:
 
 inline bool Runtime::initialized() { return initialized_; }
 
-extern void shutDown();
-
 }  // namespace amd
 
 #endif /*RUNTIME_HPP_*/