Remove an export

    CLI Example:

    .. code-block:: bash

        salt '*' nfs.del_export /media/storage

def del_export(exports='/etc/exports', path=None):
    '''
    Remove an export

    CLI Example:

    .. code-block:: bash

        salt '*' nfs.del_export /media/storage
    '''
    edict = list_exports(exports)
    del edict[path]
    _write_exports(exports, edict)
    return edict