Implements profile selection tab in Storage Settings

- StorageDashboardFragment and StorageItemPreferenceController works only
  for one profile per instance.
- StorageAsyncLoader loads for all users(profiles) and regards each user independent.
- SecondaryUserController will not load personal profile user in work profile tab.
- Cleanup some unused profile related files.

Bug: 174964885
Test: atest com.android.settings.deviceinfo
      atest com.android.settings.deviceinfo.storage
      make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.deviceinfo
      make RunSettingsRoboTests -j ROBOTEST_FILTER=com.android.settings.deviceinfo.storage
Change-Id: I8361c29bc240c519c7261b19522c41439479c1c2
Merged-In: I8361c29bc240c519c7261b19522c41439479c1c2

src/com/android/settings/deviceinfo/storage/SecondaryUserController.java

@@ -63,9 +63,11 @@ public class SecondaryUserController extends AbstractPreferenceController implem
      *
      * @param context     Context for initializing the preference controllers.
      * @param userManager UserManagerWrapper for figuring out which controllers to add.
+     * @param isWorkProfileOnly only shows secondary users of work profile.
+     *                          (e.g., it should be true in work profile tab)
      */
     public static List<AbstractPreferenceController> getSecondaryUserControllers(
-            Context context, UserManager userManager) {
+            Context context, UserManager userManager, boolean isWorkProfileOnly) {
 
         List<AbstractPreferenceController> controllers = new ArrayList<>();
         UserInfo primaryUser = userManager.getPrimaryUser();
@@ -77,7 +79,11 @@ public class SecondaryUserController extends AbstractPreferenceController implem
                 continue;
             }
 
-            if (info == null || Utils.isProfileOf(primaryUser, info)) {
+            if (Utils.isProfileOf(primaryUser, info)) {
+                continue;
+            }
+
+            if (isWorkProfileOnly && !info.isManagedProfile()) {
                 continue;
             }