XCB: allow mouse coordinates out rendering source area

This fixes problems with hiding the cursor while it is within the
"black bars". This should also improve gestures usability.

modules/video_output/xcb/events.c

@@ -75,8 +75,6 @@ static void HandleMotionNotify (vout_display_t *vd, xcb_connection_t *conn,
     const int y = vd->source.i_y_offset +
         (int64_t)(ev->event_y - place.y) * vd->source.i_visible_height/ place.height;
 
-    if (x >= vd->source.i_x_offset && x < vd->source.i_x_offset + vd->source.i_visible_width &&
-        y >= vd->source.i_y_offset && y < vd->source.i_y_offset + vd->source.i_visible_height)
     vout_display_SendEventMouseMoved (vd, x, y);
 }