Use preference for about phone page instead of injection.

It's faster than tile injection. The fragment comes from Settings
itself, we don't have to use to injection.

Bug: 118168552
Test: robotest
Change-Id: If6a79dd73f8a51dbb21338a40f22dc8b8f8c8cb8

src/com/android/settings/deviceinfo/aboutphone/MyDeviceInfoFragment.java

@@ -181,25 +181,6 @@ public class MyDeviceInfoFragment extends DashboardFragment
         controller.updateDeviceName(confirm);
     }
 
-    private static class SummaryProvider implements SummaryLoader.SummaryProvider {
-
-        private final SummaryLoader mSummaryLoader;
-
-        public SummaryProvider(SummaryLoader summaryLoader) {
-            mSummaryLoader = summaryLoader;
-        }
-
-        @Override
-        public void setListening(boolean listening) {
-            if (listening) {
-                mSummaryLoader.setSummary(this, DeviceModelPreferenceController.getDeviceModel());
-            }
-        }
-    }
-
-    public static final SummaryLoader.SummaryProviderFactory SUMMARY_PROVIDER_FACTORY
-            = (activity, summaryLoader) -> new SummaryProvider(summaryLoader);
-
     /**
      * For Search.
      */