If modes_api is on, log active rule types even if zen mode is off

This removes a clause that would short-circuit gathering the set of active rule types if the zen mode is ZEN_MODE_OFF. But this doesn't account for rules that don't enable notification filtering.

Bug: 324281768
Test: ZenModeHelperTest
Change-Id: I36a1b2fa107079d824c34618a44d812805ffd15d