wined3d: Don't bother updating the context's window in context_destroy_gl_resources().

context_update_window() accesses the swapchain, which may not exist if this is
a destroyed context, and we don't do anything that needs displaying here
anyway.

dlls/wined3d/context.c

@@ -869,7 +869,6 @@ static void context_destroy_gl_resources(struct wined3d_context *context)
     restore_ctx = pwglGetCurrentContext();
     restore_dc = pwglGetCurrentDC();
 
-    context_update_window(context);
     if (context->valid && restore_ctx != context->glCtx)
         context_set_gl_context(context);
     else restore_ctx = NULL;