Revert "Don't write user_switcher_enabled value when enter this Settings"

This reverts commit 898d6b4d73f40b08a91f69dbdf3b67550f1df198.

Reason for revert: Causing a regression
Bug: 153944718

Change-Id: If96441618d32a65b0bae4c5c26fb3b278556cc8c
1 file changed