Cannot delete image styles from UI any longer

Updated: Comment #0

Problem/Motivation

The 'Delete' operation in the list of image styles is no longer available, after commit of #2167641: EntityInterface::uri() should use route name and not path. Also, the 'Delete' link in the image style edit form is not working (in fact it was not working before either).

Proposed resolution

Add the 'delete-form' link in the annotation of ImageStyle. Also, use the opportunity to convert the 'cancel' link in effect edit to use route_name and route_parameter instead of href.

Remaining tasks

Review patch

User interface changes

API changes