CarrierConfigLoader shouldn't use unsupported APIs

Sticky broadcasts are deprecated so don't send
ACTION_CARRIER_CONFIG_CHANGED as a sticky broadcast. Certain listening
apps will have to change, but there is a recommended alternative, which
is to just get the current carrier config at the time of registration.

Registering the receiver not as user shouldn't cause any behavioral
changes.

Bug: 137202333
Test: manually rebooted and swapped SIMs a few times and verified that
configs from default app and carrier app are correctly set, and signal
bar works correctly.

Change-Id: I0db4cdf83d7f7d99ff87d5f2f581e788aa535257
diff --git a/src/com/android/phone/CarrierConfigLoader.java b/src/com/android/phone/CarrierConfigLoader.java
index 8b74af4..4025bbb 100644
--- a/src/com/android/phone/CarrierConfigLoader.java
+++ b/src/com/android/phone/CarrierConfigLoader.java
@@ -20,7 +20,6 @@
 import static android.service.carrier.CarrierService.ICarrierServiceWrapper.RESULT_ERROR;
 
 import android.annotation.NonNull;
-import android.app.ActivityManager;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
 import android.content.Context;
@@ -40,7 +39,6 @@
 import android.os.RemoteException;
 import android.os.ResultReceiver;
 import android.os.ServiceManager;
-import android.os.UserHandle;
 import android.preference.PreferenceManager;
 import android.service.carrier.CarrierIdentifier;
 import android.service.carrier.CarrierService;
@@ -514,7 +512,7 @@
         pkgFilter.addAction(Intent.ACTION_PACKAGE_REMOVED);
         pkgFilter.addAction(Intent.ACTION_PACKAGE_REPLACED);
         pkgFilter.addDataScheme("package");
-        context.registerReceiverAsUser(mPackageReceiver, UserHandle.ALL, pkgFilter, null, null);
+        context.registerReceiver(mPackageReceiver, pkgFilter);
 
         int numPhones = TelephonyManager.from(context).getPhoneCount();
         mConfigFromDefaultApp = new PersistableBundle[numPhones];
@@ -592,7 +590,7 @@
         }
         intent.putExtra(CarrierConfigManager.EXTRA_SLOT_INDEX, phoneId);
         log("Broadcast CARRIER_CONFIG_CHANGED for phone " + phoneId);
-        ActivityManager.broadcastStickyIntent(intent, UserHandle.USER_ALL);
+        mContext.sendBroadcast(intent);
         mHasSentConfigChange[phoneId] = true;
     }