fftools/ffmpeg_filter: drop a block commented out since 2012
Since the option it relates to is deprecated, it is highly unlikely to become useful.
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@ -902,19 +902,6 @@ static int configure_input_audio_filter(FilterGraph *fg, InputFilter *ifilter,
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AUTO_INSERT_FILTER_INPUT("-async", "aresample", args);
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}
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// if (ost->audio_channels_mapped) {
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// int i;
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// AVBPrint pan_buf;
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// av_bprint_init(&pan_buf, 256, 8192);
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// av_bprintf(&pan_buf, "0x%"PRIx64,
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// av_get_default_channel_layout(ost->audio_channels_mapped));
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// for (i = 0; i < ost->audio_channels_mapped; i++)
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// if (ost->audio_channels_map[i] != -1)
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// av_bprintf(&pan_buf, ":c%d=c%d", i, ost->audio_channels_map[i]);
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// AUTO_INSERT_FILTER_INPUT("-map_channel", "pan", pan_buf.str);
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// av_bprint_finalize(&pan_buf, NULL);
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// }
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snprintf(name, sizeof(name), "trim for input stream %d:%d",
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ist->file_index, ist->st->index);
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if (copy_ts) {
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