belted_* -> belt

BUR #50868 is pending approval.

create implication belted_skirt -> belt
create implication belted_skirt -> skirt
create implication belted_shorts -> belt
create implication belted_shorts -> shorts

belted clothes

Belt+skirt has 112k posts and belt+shorts has 69k posts. Neither of them appear to have that many false positives. These tags are useless unless we want to populate them on tens of thousands of posts.

BUR #51835 is pending approval.

mass update belted_skirt -> belt skirt
nuke belted_skirt
mass update belted_shorts -> belt shorts
nuke belted_shorts

As above