Deprecate neckwear_grab

BUR #18972 has been rejected.

deprecate neckwear_grab

Most other neckwear tags are deprecated. neckwear_grab -necktie_grab has barely 136 posts.

forum #200907

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 #18972 (forum #250293) has been rejected by @DanbooruBot.