pkg/encapsulation: remove unused 'none' encapsulation

pkg/encapsulation/none.go

@@ -1,63 +0,0 @@
-// Copyright 2019 the Kilo authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package encapsulation
-
-import (
-	"net"
-
-	"github.com/squat/kilo/pkg/iptables"
-)
-
-type none Strategy
-
-// NewNone returns an new encapsulator that does not encapsulate.
-func NewNone(strategy Strategy) Encapsulator {
-	return none(strategy)
-}
-
-// CleanUp is a no-op.
-func (n none) CleanUp() error {
-	return nil
-}
-
-// Gw always returns nil.
-func (n none) Gw(_, _ net.IP, _ *net.IPNet) net.IP {
-	return nil
-}
-
-// Index always returns 0.
-func (n none) Index() int {
-	return 0
-}
-
-// Init is a no-op.
-func (n none) Init(base int) error {
-	return nil
-}
-
-// Rules always returns an empty list.
-func (n none) Rules(_ []*net.IPNet) []iptables.Rule {
-	return nil
-}
-
-// Set is a no-op.
-func (n none) Set(_ *net.IPNet) error {
-	return nil
-}
-
-// Strategy returns the configured strategy for encapsulation.
-func (n none) Strategy() Strategy {
-	return Strategy(n)
-}