Reduce log noise in KeyguardUpdateMonitorLog

Time tick log and battery update logs result in useful log messages being evicted over a period of time.
Removing these two logs will help us have more debug logs for any issues in the wild.

Bug: 275097662
Test: Everything builds, verified time tick logs don't show up in log buffer.
Change-Id: I1de4f5c200f4fb12a4578ee4edc393549c439068