This feature has been disabled since 2.80 but the feature description was still visible in the UI. Addresses part of T101429 Breaking changes: - Removes `EDGESLIDE_EDGE_NEXT` - Removes `EDGESLIDE_PREV_NEXT` Reviewed By: mano-wii Maniphest Tasks: T101429 Differential Revision: https://developer.blender.org/D16430