Don't write user_switcher_enabled value when enter this Settings

Settings side should not set user_switcher_enabled value when user
just visit settings. It will force enable user_switcher_enabled
without user confirm.

Bug: 141372193
Test: manual & robotest
Change-Id: I1bbe166a45837919cbc22a7c42e72251e64cc67f
diff --git a/src/com/android/settings/users/MultiUserSwitchBarController.java b/src/com/android/settings/users/MultiUserSwitchBarController.java
index a5fdf9b..58de149 100644
--- a/src/com/android/settings/users/MultiUserSwitchBarController.java
+++ b/src/com/android/settings/users/MultiUserSwitchBarController.java
@@ -52,8 +52,6 @@
         mListener = listener;
         mUserCapabilities = UserCapabilities.create(context);
         mSwitchBar.setChecked(mUserCapabilities.mUserSwitcherEnabled);
-        Settings.Global.putInt(mContext.getContentResolver(),
-                Settings.Global.USER_SWITCHER_ENABLED, mSwitchBar.isChecked() ? 1 : 0);
 
         if (mUserCapabilities.mDisallowSwitchUser) {
             mSwitchBar.setDisabledByAdmin(RestrictedLockUtilsInternal