Merge "Add getSubscriptionId API" am: 7813c4a9a3

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/2470383

Change-Id: I8d3584c77241e2d273bccf1d97ad592501d9afd5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/src/com/android/settings/sim/smartForwarding/DisableSmartForwardingTask.java b/src/com/android/settings/sim/smartForwarding/DisableSmartForwardingTask.java
index d483dd1..a1035dc 100644
--- a/src/com/android/settings/sim/smartForwarding/DisableSmartForwardingTask.java
+++ b/src/com/android/settings/sim/smartForwarding/DisableSmartForwardingTask.java
@@ -57,10 +57,6 @@
     }
 
     private int getSubId(int slotIndex) {
-        int[] subId = SubscriptionManager.getSubId(slotIndex);
-        if (subId != null && subId.length > 0) {
-            return subId[0];
-        }
-        return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+        return SubscriptionManager.getSubscriptionId(slotIndex);
     }
 }