📝 Remove requirement to test w/o ACL as that just got removed

CONTRIBUTING.md

@@ -360,8 +360,7 @@ and branching strategy.
    An [automatic build workflow](https://github.com/OctoPrint/OctoPrint/actions?query=workflow%3ABuild)
    is in place that will run these checks - if they fail your PR will be marked accordingly.
 10. **Test your changes thoroughly**. That also means testing with usage
-    scenarios you don't normally use, e.g. if you only use access control, test
-    without and vice versa. If you only test with your printer, test with the
+    scenarios you don't normally use. If you only test with your printer, test with the
     virtual printer and vice versa. State in your pull request how you tested
     your changes. Ideally **add unit tests** - OctoPrint severely lacks in that
     department, but we are trying to change that, so any new code already covered