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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove(env, securitygroup_id, rule_id):
 """Remove a rule from a security group."""

    mgr = SoftLayer.NetworkManager(env.client)

    ret = mgr.remove_securitygroup_rule(securitygroup_id, rule_id)

    if not ret:
        raise exceptions.CLIAbort("Failed to remove security group rule")

    table = formatting.Table(REQUEST_BOOL_COLUMNS)
    table.add_row([ret['requestId']])

    env.fout(table)