Remove KtProtoLog

We now support unprocessed protologging so we don't need KtProtoLog. In fact we should avoid it since it only support logging to logcat and not actually to protolog unlike using ProtoLog directly.

Flag: EXEMPT refactor removing file
Fixes: 349977444
Test: m droid + flash and run on device
Change-Id: I02990ecbf57ecde1a0c6bdb295731884dcc4b61e