Added unregisterContentResolvers() to CallLogDataSource and PhoneLookup.

This is needed to support flag changes which should cause the call log framework to become disabled.

It's not called anywhere yet.

Bug: 74821995
Test: unit
PiperOrigin-RevId: 189761665
Change-Id: I914c690448f03ebacd7d05c9ad082aba7bf1a4ce
11 files changed