Revert "Add the assisted dialing carrier config."

This reverts commit af7b8c0a67.

Reason for revert: we're cutting the feature from P

Change-Id: I1ccc2c36b480f64c3a8b3df7eee73f80b7863722
Bug: 73727182

telecomm/java/android/telecom/Connection.java

@@ -35,7 +35,6 @@ import android.os.IBinder;
 import android.os.Looper;
 import android.os.Message;
 import android.os.ParcelFileDescriptor;
-import android.os.Parcelable;
 import android.os.RemoteException;
 import android.os.SystemClock;
 import android.util.ArraySet;
@@ -402,6 +401,7 @@ public abstract class Connection extends Conferenceable {
 
     /**
      * Set by the framework to indicate that a connection is using assisted dialing.
+     * @hide
      */
     public static final int PROPERTY_ASSISTED_DIALING_USED = 1 << 9;
 
@@ -2537,19 +2537,6 @@ public abstract class Connection extends Conferenceable {
         putExtras(newExtras);
     }
 
-    /**
-     * Adds a parcelable extra to this {@code Connection}.
-     *
-     * @param key The extra key.
-     * @param value The value.
-     * @hide
-     */
-    public final void putExtra(@NonNull String key, @NonNull Parcelable value) {
-        Bundle newExtras = new Bundle();
-        newExtras.putParcelable(key, value);
-        putExtras(newExtras);
-    }
-
     /**
      * Removes extras from this {@code Connection}.
      *