fftools/ffmpeg: remove deprecated -[av]bsf

They were marked as deprecated over 10 years ago.

doc/ffmpeg.texi

@@ -1254,8 +1254,6 @@ Specify which version of the vstats format to use. Default is @code{2}. See the
 
 @item -vtag @var{fourcc/tag} (@emph{output})
 Force video tag/fourcc. This is an alias for @code{-tag:v}.
-@item -vbsf @var{bitstream_filter}
-Deprecated see -bsf
 
 @item -force_key_frames[:@var{stream_specifier}] @var{time}[,@var{time}...] (@emph{output,per-stream})
 @item -force_key_frames[:@var{stream_specifier}] expr:@var{expr} (@emph{output,per-stream})
@@ -1624,8 +1622,6 @@ This is an alias for @code{-filter:a}, see the @ref{filter_option,,-filter optio
 @table @option
 @item -atag @var{fourcc/tag} (@emph{output})
 Force audio tag/fourcc. This is an alias for @code{-tag:a}.
-@item -absf @var{bitstream_filter}
-Deprecated, see -bsf
 @item -guess_layout_max @var{channels} (@emph{input,per-stream})
 If some input channel layout is not known, try to guess only if it
 corresponds to at most the specified number of channels. For example, 2

fftools/ffmpeg_opt.c

@@ -1920,18 +1920,9 @@ const OptionDef options[] = {
         "0 = use frame rate (video) or sample rate (audio),"
         "-1 = match source time base", "ratio" },
 
-    { "bsf", OPT_TYPE_STRING, OPT_SPEC | OPT_EXPERT | OPT_OUTPUT | OPT_HAS_ALT,
+    { "bsf", OPT_TYPE_STRING, OPT_SPEC | OPT_EXPERT | OPT_OUTPUT,
         { .off = OFFSET(bitstream_filters) },
-        "A comma-separated list of bitstream filters", "bitstream_filters",
-        .u1.names_alt = alt_bsf, },
-    { "absf", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
-        { .func_arg = opt_old2new },
-        "deprecated", "audio bitstream_filters",
-        .u1.name_canon = "bsf", },
-    { "vbsf", OPT_TYPE_FUNC, OPT_VIDEO | OPT_FUNC_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
-        { .func_arg = opt_old2new },
-        "deprecated", "video bitstream_filters",
-        .u1.name_canon = "bsf", },
+        "A comma-separated list of bitstream filters", "bitstream_filters", },
 
     { "apre", OPT_TYPE_FUNC, OPT_FUNC_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
         { .func_arg = opt_preset },