Fix typo in android.telecom.Connection.

 * must call {@link #destroy()} to signal to the framework that the {@code Connection} is no

 * longer used and associated resources may be recovered.

 * <p>

 * Subclasses of {@code Connection} override the {@code on*} methods to provide the the

 * Subclasses of {@code Connection} override the {@code on*} methods to provide the

 * {@link ConnectionService}'s implementation of calling functionality.  The {@code on*} methods are

 * called by Telecom to inform an instance of a {@code Connection} of actions specific to that

 * {@code Connection} instance.