winex11: Don't set the cursor on the desktop window since it's managed by another process.

dlls/winex11.drv/mouse.c

@@ -879,6 +879,7 @@ static Cursor create_cursor( Display *display, CURSORICONINFO *ptr )
  */
 void X11DRV_SetCursor( CURSORICONINFO *lpCursor )
 {
+    struct x11drv_thread_data *data = x11drv_thread_data();
     Cursor cursor;
 
     if (lpCursor)
@@ -887,24 +888,7 @@ void X11DRV_SetCursor( CURSORICONINFO *lpCursor )
     else
         TRACE("NULL\n");
 
-    if (root_window != DefaultRootWindow(gdi_display))
-    {
-        /* If in desktop mode, set the cursor on the desktop window */
-
-        wine_tsx11_lock();
-        cursor = create_cursor( gdi_display, lpCursor );
-        if (cursor)
-        {
-            XDefineCursor( gdi_display, root_window, cursor );
-	    /* Make the change take effect immediately */
-	    XFlush(gdi_display);
-            XFreeCursor( gdi_display, cursor );
-        }
-        wine_tsx11_unlock();
-    }
-    else /* set the same cursor for all top-level windows of the current thread */
-    {
-        struct x11drv_thread_data *data = x11drv_thread_data();
+    /* set the same cursor for all top-level windows of the current thread */
 
     wine_tsx11_lock();
     cursor = create_cursor( data->display, lpCursor );
@@ -920,7 +904,6 @@ void X11DRV_SetCursor( CURSORICONINFO *lpCursor )
         }
     }
     wine_tsx11_unlock();
-    }
 }
 
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