Revert "[Settings] Support getSystemService(Class<T>)"

This reverts commit d5ccde31a8.

Reason for revert: failure on test cases

Change-Id: I0a179a6ebb5ef1dec566ce6e8facd5f3b82d7c8a

src/com/android/settings/deviceinfo/simstatus/SimStatusPreferenceController.java

@@ -46,9 +46,9 @@ public class SimStatusPreferenceController extends
     public SimStatusPreferenceController(Context context, Fragment fragment) {
         super(context);
 
-        mTelephonyManager = context.getSystemService(TelephonyManager.class);
-        mSubscriptionManager = context.getSystemService(
-                SubscriptionManager.class);
+        mTelephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
+        mSubscriptionManager = (SubscriptionManager) context.getSystemService(
+                Context.TELEPHONY_SUBSCRIPTION_SERVICE);
         mFragment = fragment;
     }