v4l2videoenc: Remove unused function

sys/v4l2/gstv4l2videoenc.c

@@ -897,18 +897,6 @@ gst_v4l2_video_enc_subclass_init (gpointer g_class, gpointer data)
 }
 
 /* Probing functions */
-gboolean
-gst_v4l2_is_video_enc (GstCaps * sink_caps, GstCaps * src_caps)
-{
-  gboolean ret = FALSE;
-
-  if (gst_caps_is_subset (sink_caps, gst_v4l2_object_get_raw_caps ())
-      && gst_caps_is_subset (src_caps, gst_v4l2_object_get_codec_caps ()))
-    ret = TRUE;
-
-  return ret;
-}
-
 gboolean
 gst_v4l2_video_enc_register (GstPlugin * plugin, GType type,
     const char *codec, const gchar * basename, const gchar * device_path,