Remove unused api.

        }

    }

    /**

     * Try to ensure the device stays awake until we connect with the next network.

     * Actually just holds a wakelock for a number of seconds while we try to connect

     * to any default networks.  This will expire if the timeout passes or if we connect

     * to a default after this is called.  For internal use only.

     *

     * @param forWhom the name of the network going down for logging purposes

     * @return {@code true} on success, {@code false} on failure

     *

     * <p>This method requires the call to hold the permission

     * {@link android.Manifest.permission#CONNECTIVITY_INTERNAL}.

     * {@hide}

     */

    public boolean requestNetworkTransitionWakelock(String forWhom) {

        try {

            mService.requestNetworkTransitionWakelock(forWhom);

            return true;

        } catch (RemoteException e) {

            return false;

        }

    }

    /**

     * Report network connectivity status.  This is currently used only

     * to alter status bar UI.

    int setUsbTethering(boolean enable);

    void requestNetworkTransitionWakelock(in String forWhom);

    void reportInetCondition(int networkType, int percentage);

    void reportBadNetwork(in Network network);

                mTethering.getUpstreamIfaceTypes().length != 0);

    }

    // An API NetworkStateTrackers can call when they lose their network.

    // This will automatically be cleared after X seconds or a network becomes CONNECTED,

    // whichever happens first.  The timer is started by the first caller and not

    // restarted by subsequent callers.

    public void requestNetworkTransitionWakelock(String forWhom) {

        enforceConnectivityInternalPermission();

    // Called when we lose the default network and have no replacement yet.

    // This will automatically be cleared after X seconds or a new default network

    // becomes CONNECTED, whichever happens first.  The timer is started by the

    // first caller and not restarted by subsequent callers.

    private void requestNetworkTransitionWakelock(String forWhom) {

        int serialNum = 0;

        synchronized (this) {

            if (mNetTransitionWakeLock.isHeld()) return;