Revert "user.exe: Release the Win16 lock due to loading 32-bit dlls in CreateWindow."

dlls/user.exe16/message.c

@@ -2648,17 +2648,11 @@ static DWORD wait_message16( DWORD count, const HANDLE *handles, DWORD timeout,
  */
 HWND create_window16( CREATESTRUCTW *cs, LPCWSTR className, HINSTANCE instance, BOOL unicode )
 {
-    DWORD lock;
-    HWND ret;
-
     /* map to module handle */
     if (instance && !((ULONG_PTR)instance >> 16))
         instance = HINSTANCE_32( GetExePtr( HINSTANCE_16(instance) ));
 
-    ReleaseThunkLock( &lock );
-    ret = wow_handlers32.create_window( cs, className, instance, unicode );
-    RestoreThunkLock( lock );
-    return ret;
+    return wow_handlers32.create_window( cs, className, instance, unicode );
 }