update vendor

Signed-off-by: Duan Jiong <djduanjiong@gmail.com>

vendor/github.com/projectcalico/libcalico-go/lib/set/set.go

@@ -1,146 +0,0 @@
-// Copyright (c) 2016-2017 Tigera, Inc. All rights reserved.
-//
-// 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 set
-
-import (
-	"errors"
-	"reflect"
-
-	log "github.com/sirupsen/logrus"
-)
-
-type Set interface {
-	Len() int
-	Add(interface{})
-	AddAll(itemArray interface{})
-	Discard(interface{})
-	Clear()
-	Contains(interface{}) bool
-	Iter(func(item interface{}) error)
-	Copy() Set
-	Equals(Set) bool
-	ContainsAll(Set) bool
-}
-
-type empty struct{}
-
-var emptyValue = empty{}
-
-var (
-	StopIteration = errors.New("Stop iteration")
-	RemoveItem    = errors.New("Remove item")
-)
-
-func New() Set {
-	return make(mapSet)
-}
-
-func From(members ...interface{}) Set {
-	s := New()
-	s.AddAll(members)
-	return s
-}
-
-func FromArray(membersArray interface{}) Set {
-	s := New()
-	s.AddAll(membersArray)
-	return s
-}
-
-func Empty() Set {
-	return mapSet(nil)
-}
-
-type mapSet map[interface{}]empty
-
-func (set mapSet) Len() int {
-	return len(set)
-}
-
-func (set mapSet) Add(item interface{}) {
-	set[item] = emptyValue
-}
-
-func (set mapSet) AddAll(itemArray interface{}) {
-
-	arrVal := reflect.ValueOf(itemArray)
-	for i := 0; i < arrVal.Len(); i++ {
-		set.Add(arrVal.Index(i).Interface())
-	}
-}
-
-func (set mapSet) Discard(item interface{}) {
-	delete(set, item)
-}
-
-func (set mapSet) Clear() {
-	for item := range set {
-		delete(set, item)
-	}
-}
-
-func (set mapSet) Contains(item interface{}) bool {
-	_, present := set[item]
-	return present
-}
-
-func (set mapSet) Iter(visitor func(item interface{}) error) {
-loop:
-	for item := range set {
-		err := visitor(item)
-		switch err {
-		case StopIteration:
-			break loop
-		case RemoveItem:
-			delete(set, item)
-		case nil:
-			break
-		default:
-			log.WithError(err).Panic("Unexpected iteration error")
-		}
-	}
-}
-
-func (set mapSet) Copy() Set {
-	cpy := New()
-	for item := range set {
-		cpy.Add(item)
-	}
-	return cpy
-}
-
-func (set mapSet) Equals(other Set) bool {
-	if set.Len() != other.Len() {
-		return false
-	}
-	for item := range set {
-		if !other.Contains(item) {
-			return false
-		}
-	}
-	return true
-}
-
-func (set mapSet) ContainsAll(other Set) bool {
-	result := true
-	other.Iter(func(item interface{}) error {
-		if !set.Contains(item) {
-			result = false
-			return StopIteration
-		}
-		return nil
-	})
-	return result
-}