Remove restriction for "Use location..."

Remove restriction for "Use location to set time zone" toggle.

This setting should not be restricted. Using location is a personal
choice since it involves the use of the device's location.

Bug: 166579161
Test: manual testing with / without date/time restriction
Change-Id: I89973e1df5cad8b4c639c13478298f9b39f37b5f
diff --git a/res/xml/date_time_prefs.xml b/res/xml/date_time_prefs.xml
index 6fc0b25..47056df 100644
--- a/res/xml/date_time_prefs.xml
+++ b/res/xml/date_time_prefs.xml
@@ -53,11 +53,10 @@
         settings:keywords="@string/keywords_time_zone"/>
 
     <!-- This preference gets removed if location-based time zone detection is not supported -->
-    <com.android.settingslib.RestrictedSwitchPreference
+    <SwitchPreference
         android:key="location_time_zone_detection"
         android:title="@string/location_time_zone_detection_toggle_title"
         settings:controller="com.android.settings.datetime.LocationTimeZoneDetectionPreferenceController"
-        settings:userRestriction="no_config_date_time"
     />
 
     <PreferenceCategory