Resolve Telecom Binder#withCleanCallingIdentity usages

As part of mainline prep, remove the use of
Binder#withCleanCallingIdentity usages from Telecom (as this is a hidden
API).

Bug: 307785735
Bug: 311773409
Test: m Telecom
Change-Id: Ib04c6648ee97eb0620d14be6d539934edcc52732