Remove obsolete PIC code

Remove two PIC "features" that have never been used.  This cleanup
will make it easier to extend PIC support to oneway binder calls.

1. The VERIFY feature, which is only for debug and testing, has not
   been used since early 2020.  It is statically disabled in the code;
   this change removes it entirely.  Two stubbed overloads in support
   of this feature have been removed as well.

2. The refresh feature has never been used.  This feature allows a
   cache instance to retry cache hits.

Several debug statements have been removed as well.

Flag: EXEMPT refactor
Bug: 415306020
Test: atest
 * FrameworksCoreTests:PropertyInvalidatedCacheTests
 * FrameworksCoreTests:IpcDataCacheTest
 * CtsOsTestCases:IpcDataCacheTest
Change-Id: I0139ba7c3fda58350e3ba1944dec75601bfa8193