Revert "Change Settings to use URL_FILTERED and blocks menu options when DPC Apns are enforced."

This reverts commit ab1f251d.

Reason for revert: As per discussion in b/72484718, we are going to
block Access Point Name entry point in Network&Settings, so we no longer
need the change in ApnSettings fragment itself.
Bug: 72484718

Change-Id: I337a03e8baebaedb9e9ab83ccc4f7cf2f9c562c8