Revert "x11: check if window size/position has changed during SDL_ShowWindow."

This reverts commit aa536217b3e1a9ea4a5de9944cadbd79b134a41a.

src/video/x11/SDL_x11window.c

@@ -1180,33 +1180,6 @@ void X11_ShowWindow(_THIS, SDL_Window *window)
     if (data->border_left == 0 && data->border_right == 0 && data->border_top == 0 && data->border_bottom == 0) {
         X11_GetBorderValues(data);
     }
-
-    /* Check if the window manager moved us somewhere unexpected, just in case. */
-    {
-        int (*prev_handler)(Display *, XErrorEvent *) = NULL;
-        Window childReturn, root, parent;
-        Window *children;
-        unsigned int childCount;
-        XWindowAttributes attrs;
-        int x, y;
-
-        X11_XSync(display, False);
-        prev_handler = X11_XSetErrorHandler(X11_CatchAnyError);
-        caught_x11_error = SDL_FALSE;
-        X11_XQueryTree(display, data->xwindow, &root, &parent, &children, &childCount);
-        X11_XGetWindowAttributes(display, data->xwindow, &attrs);
-        X11_XTranslateCoordinates(display, parent, DefaultRootWindow(display),
-                                  attrs.x, attrs.y, &x, &y, &childReturn);
-
-        if (!caught_x11_error) {
-            /* if these values haven't changed from our current beliefs, these don't actually generate events. */
-            SDL_SendWindowEvent(window, SDL_WINDOWEVENT_MOVED, x, y);
-            SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, attrs.width, attrs.height);
-        }
-
-        X11_XSetErrorHandler(prev_handler);
-        caught_x11_error = SDL_FALSE;
-    }
 }
 
 void X11_HideWindow(_THIS, SDL_Window *window)