[BUR] pruning of left-to-right_manga

BUR #32889 has been rejected.

mass update left-to-right_manga english_text -hard-translated -alternate_language -> -left-to-right_manga comic

Tag is widely misused for comics written in English.

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #32889 (forum #313258) has been rejected by @DanbooruBot.