Revert "WIP: adds cropper directive"

This reverts commit c5a7eab1d5496be7090a5bb686bc0a2f069992a6.
new cropper is only contained in 7.1 branch
Revert "adds editing function to media picker controller"

This reverts commit 7d051dffbb1b891979cb4e1d698e5f536661d691.
This will only be contained in 7.1