[Telephony Mainline] Removed IPackageManager reference

Bug: 140908357
Test: Build
Change-Id: I53d7d98b9689c1b4f764c24fc17bb488adcf96b5

telephony/java/android/telephony/ims/ProvisioningManager.java

@@ -25,8 +25,6 @@ import android.annotation.StringDef;
 import android.annotation.SystemApi;
 import android.annotation.TestApi;
 import android.annotation.WorkerThread;
-import android.content.pm.IPackageManager;
-import android.content.pm.PackageManager;
 import android.os.Binder;
 import android.os.RemoteException;
 import android.telephony.CarrierConfigManager;
@@ -382,10 +380,6 @@ public class ProvisioningManager {
     @RequiresPermission(Manifest.permission.READ_PRIVILEGED_PHONE_STATE)
     public void registerProvisioningChangedCallback(@NonNull @CallbackExecutor Executor executor,
             @NonNull Callback callback) throws ImsException {
-        if (!isImsAvailableOnDevice()) {
-            throw new ImsException("IMS not available on device.",
-                    ImsException.CODE_ERROR_UNSUPPORTED_OPERATION);
-        }
         callback.setExecutor(executor);
         try {
             getITelephony().registerImsProvisioningChangedCallback(mSubId, callback.getBinder());
@@ -612,26 +606,6 @@ public class ProvisioningManager {
                 + "supported");
     }
 
-    private static boolean isImsAvailableOnDevice() {
-        IPackageManager pm = IPackageManager.Stub.asInterface(
-                TelephonyFrameworkInitializer
-                        .getTelephonyServiceManager()
-                        .getPackageManagerServiceRegisterer()
-                        .get());
-        if (pm == null) {
-            // For some reason package manger is not available.. This will fail internally anyways,
-            // so do not throw error and allow.
-            return true;
-        }
-        try {
-            return pm.hasSystemFeature(PackageManager.FEATURE_TELEPHONY_IMS, 0);
-        } catch (RemoteException e) {
-            // For some reason package manger is not available.. This will fail internally anyways,
-            // so do not throw error and allow.
-        }
-        return true;
-    }
-
     private static ITelephony getITelephony() {
         ITelephony binder = ITelephony.Stub.asInterface(
                 TelephonyFrameworkInitializer