Remove detection of mmsh protocol in ffplay.

This is useless as long as mmsh is not implemented in libavformat.
This is a revert of r10936.

Originally committed as revision 16687 to svn://svn.ffmpeg.org/ffmpeg/trunk

ffplay.c

@@ -2019,10 +2019,8 @@ static int decode_thread(void *arg)
             else
                 av_read_play(ic);
         }
-#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
-        if (is->paused &&
-                (!strcmp(ic->iformat->name, "rtsp") ||
-                 (ic->pb && !strcmp(url_fileno(ic->pb)->prot->name, "mmsh")))) {
+#if CONFIG_RTSP_DEMUXER
+        if (is->paused && !strcmp(ic->iformat->name, "rtsp")) {
             /* wait 10 ms to avoid trying to get another packet */
             /* XXX: horrible */
             SDL_Delay(10);