v4l2videoenc: remove empty sink_query

The sink_query() function simply calls the sink_query() function of the parent
videoencoder class. Remove the override to simply directly call the parent's
function.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5036>

subprojects/gst-plugins-good/sys/v4l2/gstv4l2videoenc.c

@@ -1025,20 +1025,6 @@ gst_v4l2_video_enc_src_query (GstVideoEncoder * encoder, GstQuery * query)
   return ret;
 }
 
-static gboolean
-gst_v4l2_video_enc_sink_query (GstVideoEncoder * encoder, GstQuery * query)
-{
-  gboolean ret = TRUE;
-
-  switch (GST_QUERY_TYPE (query)) {
-    default:
-      ret = GST_VIDEO_ENCODER_CLASS (parent_class)->sink_query (encoder, query);
-      break;
-  }
-
-  return ret;
-}
-
 static gboolean
 gst_v4l2_video_enc_sink_event (GstVideoEncoder * encoder, GstEvent * event)
 {
@@ -1172,8 +1158,6 @@ gst_v4l2_video_enc_class_init (GstV4l2VideoEncClass * klass)
       GST_DEBUG_FUNCPTR (gst_v4l2_video_enc_decide_allocation);
   video_encoder_class->propose_allocation =
       GST_DEBUG_FUNCPTR (gst_v4l2_video_enc_propose_allocation);
-  video_encoder_class->sink_query =
-      GST_DEBUG_FUNCPTR (gst_v4l2_video_enc_sink_query);
   video_encoder_class->src_query =
       GST_DEBUG_FUNCPTR (gst_v4l2_video_enc_src_query);
   video_encoder_class->sink_event =