Problem/Motivation
Follow-up to #3111506: Properly deprecate _access_rest_csrf route requirement
As the requirement were not properly deprecated before 9.0 it was moved to d10 removal
Proposed resolution
Remove route requirement
Remove test module and test case
Remaining tasks
wait 10.0.x branch and remove
User interface changes
no
API changes
no
Data model changes
no
Release notes snippet
no