Revert "Camera2: Fix WB onScreenIndicator when some are settings filtered out."

* This is obsolete with the new WB mode picker and the AOSP fix

This reverts commit ede1eb17b2e36bfc867ba85877f686674d682d0e.

Change-Id: I77b89278276b67c7ae329e14b56ca3800aa98f42
Fix WB indicator override

Patching into Carlsbad from Bryce.

  Bug: 9372794

Change-Id: I4f23f05ca1acaef84a24034237e82001aac09f78