avcodec/chomp_bsf: Remove unnecessary header

This bsf never needed internal.h.
Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>

libavcodec/chomp_bsf.c

@@ -21,7 +21,6 @@
 
 #include "avcodec.h"
 #include "bsf.h"
-#include "internal.h"
 
 static int chomp_filter(AVBSFContext *ctx, AVPacket *pkt)
 {