Revert "Dump IMMS#mCurrentUserId instead of IMMS#mSettings"

This reverts commit fe68163d.

This fixes a lock contention that added a regression in boot time.

Fix: 329414077
Bug: 305849394
Bug: 329163064
Test: n/a
Change-Id: I585e5c6745c40e51f1080b78367175990b2c5884