Remove Crop Image from Conpherence Edit UI

Summary: Ref T11730. Removes the front end crop feature. Will follow up with proper removal, but this seems broken outright.

Test Plan:
Edit a room, don't seen "Crop" feature. Upload new photo, works fine.

• grep for ConpherencePicCropControl
• grep for aphront-crop

Reviewers: epriestley

Reviewed By: epriestley

Subscribers: Korvin

Maniphest Tasks: T11730

Differential Revision: https://secure.phabricator.com/D16665