De-install a port.

    CLI Example:

    .. code-block:: bash

        salt '*' ports.deinstall security/nmap

def deinstall(name):
    '''
    De-install a port.

    CLI Example:

    .. code-block:: bash

        salt '*' ports.deinstall security/nmap
    '''
    portpath = _check_portname(name)
    old = __salt__['pkg.list_pkgs']()
    result = __salt__['cmd.run_all'](
        ['make', 'deinstall', 'BATCH=yes'],
        cwd=portpath,
        python_shell=False
    )
    __context__.pop('pkg.list_pkgs', None)
    new = __salt__['pkg.list_pkgs']()
    return salt.utils.data.compare_dicts(old, new)