* It will remove a list of api-extension from network-api-extension
* If this argument is not passed, it will not remove anything.
* Currently neutron ext-list provides available extensions
but it doesnot lists enabled extensions. So we have added
an option to remove extension based on need. As there is a
neutron for the same:
https://bugs.launchpad.net/neutron/+bug/1450067
Change-Id: Id205e972bee406ae30e44d3d7cdda619ecb1f5c6