Migrate UI to supportsMultipleUsers().

Bug: 7194531
Change-Id: Ia7730003761595565d0977287d4bc6367be784f3
diff --git a/overlay/packages/apps/Settings/res/values/bools.xml b/overlay/packages/apps/Settings/res/values/bools.xml
index 32ac2b1..a46562e 100644
--- a/overlay/packages/apps/Settings/res/values/bools.xml
+++ b/overlay/packages/apps/Settings/res/values/bools.xml
@@ -15,6 +15,4 @@
 -->
 
 <resources>
-    <!-- Enable user management -->
-    <bool name="enable_user_management">true</bool>
 </resources>