Drop the NFO when dropping the video

yt/subscribe.pl

@@ -401,6 +401,7 @@ sub findFiles($) {
 
 					print STDERR 'Deleting duplicate: ' . $del->{'path'} . "\n";
 					unlink($del->{'path'});
+					unlink($del->{'nfo'});
 				}
 			}
 			$files{$id} = \%tmp;