win32u: Move ThreadDetach driver call from user32.

dlls/user32/driver.c

@@ -266,10 +266,6 @@ static void CDECL nulldrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT s
 {
 }
 
-static void CDECL nulldrv_ThreadDetach( void )
-{
-}
-
 
 /**********************************************************************
  * Lazy loading user driver
@@ -398,7 +394,7 @@ static struct user_driver_funcs lazy_load_driver =
     /* vulkan support */
     NULL,
     /* thread management */
-    nulldrv_ThreadDetach
+    NULL
 };
 
 void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT version )
@@ -445,7 +441,6 @@ void CDECL __wine_set_user_driver( const struct user_driver_funcs *funcs, UINT v
     SET_USER_FUNC(WindowMessage);
     SET_USER_FUNC(WindowPosChanging);
     SET_USER_FUNC(WindowPosChanged);
-    SET_USER_FUNC(ThreadDetach);
 #undef SET_USER_FUNC
 
     prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, &lazy_load_driver );

dlls/user32/user_main.c

@@ -254,7 +254,6 @@ static void thread_detach(void)
     exiting_thread_id = GetCurrentThreadId();
 
     WDML_NotifyThreadDetach();
-    USER_Driver->pThreadDetach();
 
     NtUserCallNoParam( NtUserThreadDetach );
     destroy_thread_windows();

dlls/win32u/driver.c

@@ -1070,6 +1070,8 @@ static const struct user_driver_funcs lazy_load_driver =
     .pSystemParametersInfo = nulldrv_SystemParametersInfo,
     /* vulkan support */
     .pwine_get_vulkan_driver = loaderdrv_wine_get_vulkan_driver,
+    /* thread management */
+    .pThreadDetach = nulldrv_ThreadDetach,
 };
 
 const struct user_driver_funcs *user_driver = &lazy_load_driver;

dlls/win32u/sysparams.c

@@ -4488,6 +4488,8 @@ static void thread_detach(void)
 {
     struct user_thread_info *thread_info = get_user_thread_info();
 
+    user_driver->pThreadDetach();
+
     free( thread_info->key_state );
     thread_info->key_state = 0;
 }