Removing some mentions of some always-deprecated telephony apis

They were previously intentionally removed and are only now caught by metalava

Removed in bf5158f9a041553ae2b55359bd1ccc203c5c1792

Bug: 181972033
Change-Id: I7a6dddb746cc3b408947849e2ddbef37aff3b8ec
diff --git a/30/system/api/android-non-updatable-removed.txt b/30/system/api/android-non-updatable-removed.txt
index ab4c6d1..62a385d 100644
--- a/30/system/api/android-non-updatable-removed.txt
+++ b/30/system/api/android-non-updatable-removed.txt
@@ -166,8 +166,6 @@
 package android.telephony {
 
   public final class PreciseDataConnectionState implements android.os.Parcelable {
-    method @Deprecated @Nullable public android.net.LinkProperties getDataConnectionLinkProperties();
-    method @Deprecated public int getDataConnectionNetworkType();
   }
 
   public class TelephonyManager {