remove implication heel-less_shoes -> shoes
mass update heel-less_shoes -> heel-less_platform_footwear
create implication heel-less_platform_footwear -> platform_footwear

Link to request

A bad implication from the bulk update in topic #11585, which was caused due to bad tag naming (my fault) and a user not checking the tag (or wiki) when making an implication proposal. The style is not restricted to shoes and there are boots currently under the tag as well. The implication thus needs to be removed and the tag needs to be renamed so this won't happen again.

It's also a specific subtype of platform footwear, so it should also implicate that.

The bulk update request #548 has been approved.