Add "edit-remove" icon symlink and add 22px version of "paint-none" and "edit-none"

Summary:
Add an alternative to list-remove, which needs to be next to list-add for context and edit-delete, which is a destructive deletion icon.
Symlink from edit-remove to paint-none.

Test Plan: Search for edit-remove in Cuttlefish.

Reviewers: VDG, ndavis

Reviewed By: VDG, ndavis

Subscribers: ngraham, ndavis, kde-frameworks-devel, VDG

Tags: Frameworks

Differential Revision: https://phabricator.kde.org/D20700