x11drv: Avoid redundant flushing of the thread display.

dlls/x11drv/event.c

@@ -269,6 +269,7 @@ static int process_events( Display *display, ULONG_PTR mask )
         handler( hwnd, &event );
         wine_tsx11_lock();
     }
+    XFlush( gdi_display );
     wine_tsx11_unlock();
     if (count) TRACE( "processed %d events\n", count );
     return count;
@@ -294,11 +295,6 @@ DWORD X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
     /* check whether only server queue handle was passed in */
     if (count < 2) flags &= ~MWMO_WAITALL;
 
-    wine_tsx11_lock();
-    XFlush( gdi_display );
-    XFlush( data->display );
-    wine_tsx11_unlock();
-
     data->process_event_count++;
 
     if (process_events( data->display, mask )) ret = count;

dlls/x11drv/winpos.c

@@ -671,9 +671,6 @@ BOOL X11DRV_set_window_pos( HWND hwnd, HWND insert_after, const RECT *rectWindow
                     wine_tsx11_unlock();
                 }
             }
-            wine_tsx11_lock();
-            XFlush( display );  /* FIXME: should not be necessary */
-            wine_tsx11_unlock();
         }
     }
     WIN_ReleasePtr( win );