Revert "(Partially) Fixed issue #08034: Error: The CSRF token could not be verified. Fix for deleteing a Question"

This reverts commit f5ec778ca50c160c2e5bbcd553a325b025535b51.
Revert "Fixed issue #08033: since enable CSRF protection: Cannot access advanced question attributes"

This reverts commit aeff90fbbf2f05687637680fe9ef0b14f0a9d029.
Revert "Updated feature Made beforeSave and beforeDelete events of most models available for registration via the PluginManager"

This reverts commit 2ae78ead913ecec9c1f3131b122aa0cfa489862e.