Remove admin permissions feature test
Remove admin permissions feature test

The permissions element is tested by a unit test in https://github.com/alphagov/digitalmarketplace-admin-frontend/blob/527eca037b6ba3cbbe50e2a8899c31e2157fe746/tests/app/main/views/test_users.py#L23-L35 so no need to repeat this in a feature test.

alphagov/digitalmarketplace-functional-tests,alphagov/digitalmarketplace-functional-tests,alphagov/digitalmarketplace-functional-tests