MP3::Info and MP3::Album only support a small subset of frames, and not the Attached Picture (APIC) where album art is supposed to go.

You want to do something like:

use MP3::Tag;

$mp3 = MP3::Tag->new($ARGV[0]);

$mp3->get_tags();
$id3v2 = $mp3->{ID3v2} if exists $mp3->{ID3v2};

$id3v2->remove_frame("APIC");
$id3v2->write_tag();

$mp3->close();
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Of course this is just an example, and if it breaks something you get to keep all the pieces.