Revert "Fix home settings landing page"

This reverts commit 96cc3c533c.

Reason for revert: Causes back to close sub-settings (b/191257243).

Change-Id: I3aa01bed1d73874176fc2568bac4ca714e9f2df7
Bug: 188565060

src/com/android/launcher3/settings/SettingsActivity.java

@@ -113,12 +113,6 @@ public class SettingsActivity extends FragmentActivity
         Utilities.getPrefs(getApplicationContext()).registerOnSharedPreferenceChangeListener(this);
     }
 
-    @Override
-    protected void onStop() {
-        super.onStop();
-        finish();
-    }
-
     /**
      * Obtains the preference fragment to instantiate in this activity.
      *