Bug 1719505 - [remote] Remove no longer used methods from Remote Agen…

…t interface. r=webdriver-reviewers,jdescottes

Both methods have been removed via bug 1717899 and can no
longer be used.

Differential Revision: https://phabricator.services.mozilla.com/D144980

remote/components/nsIRemoteAgent.idl

@@ -27,30 +27,6 @@ interface nsIRemoteAgent : nsISupports
    * incoming connections.
    */
   readonly attribute boolean listening;
-
-  /**
-   * Asynchronously starts the remote agent, and listens for new
-   * connections.
-   *
-   * The address must be a fully qualified URL that uses the "http://"
-   * scheme, and can optionally include a desired port.  If no port
-   * is chosen, the default port 9222 is used.
-   *
-   * If the requested port is 0, the system will atomically allocate
-   * a port.
-   *
-   * A "remote-listening" system observer notification with the URL
-   * of the main target's WebSocket will be emitted once listening.
-   *
-   * @throws NS_ERROR_LAUNCHED_CHILD_PROCESS
-   *     When called from a child process.
-   * @throws NS_ERROR_ILLEGAL_VALUE
-   *     If requested to bind to a non-loopback device.
-   */
-  void listen(in AString aURL);
-
-  /** Stops listening and drops existing connections. */
-  void close();
 };
 
 %{C++