warning C4100: 'aDiscoverable' : unreferenced formal parameter

Change-Id: I7bb5e40e8da943926f7fd8b1f76e010d073362c9
diff --git a/sd/source/ui/remotecontrol/BluetoothServer.cxx b/sd/source/ui/remotecontrol/BluetoothServer.cxx
index 41255ba..9ba9bad 100644
--- a/sd/source/ui/remotecontrol/BluetoothServer.cxx
+++ b/sd/source/ui/remotecontrol/BluetoothServer.cxx
@@ -233,6 +233,7 @@ void BluetoothServer::setDiscoverable( bool aDiscoverable )
    g_object_unref( G_OBJECT( aAdapter ));
    dbus_g_connection_unref( aConnection );
#else // defined(LINUX) && defined(ENABLE_DBUS)
    (void) aDiscoverable; // avoid warnings
    return;
#endif
}