Remove summary provider

- use SummaryProvider to provide the summary of UserSettings
- use WifiDisplayPreferenceController to replace the summary loader
in WifiDisplaySettings
- use ConfigureNotificationPreferernceController to replace the
sumary load in ConfigureNotificationSettings

Fixes: 141653158
Test: robolectric
Change-Id: Id5f5ed645707caa0b25ecae5252174cbf017651c

src/com/android/settings/SettingsActivity.java

@@ -52,7 +52,6 @@ import androidx.preference.PreferenceManager;
 import com.android.internal.util.ArrayUtils;
 import com.android.settings.Settings.WifiSettingsActivity;
 import com.android.settings.applications.manageapplications.ManageApplications;
-import com.android.settings.backup.UserBackupSettingsActivity;
 import com.android.settings.core.OnActivityResultListener;
 import com.android.settings.core.SettingsBaseActivity;
 import com.android.settings.core.SubSettingLauncher;
@@ -643,10 +642,6 @@ public class SettingsActivity extends SettingsBaseActivity
                 showDev, isAdmin)
                 || somethingChanged;
 
-        somethingChanged = setTileEnabled(changedList, new ComponentName(packageName,
-                UserBackupSettingsActivity.class.getName()), true, isAdmin)
-                || somethingChanged;
-
         somethingChanged = setTileEnabled(changedList, new ComponentName(packageName,
                         Settings.WifiDisplaySettingsActivity.class.getName()),
                 WifiDisplaySettings.isAvailable(this), isAdmin)