Settings: Fix value from being overwritten with null.

After awhile this value becomes null for unknown reasons.
Switch back to a non-changing static final for the non-multi-sim case.

Change-Id: I9248a545ed35ec10048781b21a3e6a6b17e96d74
Delete some cm performance

This is so the build completes and without deleting everything in case we need it someday. Thanks hany for the base

Signed-off-by: anerik <anerikgames@gmail.com>