Remove final from phone

Bug: 20283873
Change-Id: Ic4c3b6a7e1e3902287e9d168165f6f39eb27b994
diff --git a/system-api/23.txt b/system-api/23.txt
index 1284e12..f79d6ef 100644
--- a/system-api/23.txt
+++ b/system-api/23.txt
@@ -30074,7 +30074,7 @@
 
   public abstract class InCallService extends android.app.Service {
     ctor public InCallService();
-    method public final android.telecom.Phone getPhone();
+    method public android.telecom.Phone getPhone();
     method public android.os.IBinder onBind(android.content.Intent);
     method public void onPhoneCreated(android.telecom.Phone);
     method public void onPhoneDestroyed(android.telecom.Phone);