avcodec/profiles: remove duplicate FF_PROFILE_RESERVED entry

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>

libavcodec/profiles.c

@@ -99,7 +99,6 @@ const AVProfile ff_mpeg2_video_profiles[] = {
     { FF_PROFILE_MPEG2_MAIN,         "Main"               },
     { FF_PROFILE_MPEG2_SIMPLE,       "Simple"             },
     { FF_PROFILE_RESERVED,           "Reserved"           },
-    { FF_PROFILE_RESERVED,           "Reserved"           },
     { FF_PROFILE_UNKNOWN                                  },
 };