Bumping k8s version to 1.13.0-beta.1

vendor/github.com/go-openapi/swag/pre_go19.go

@@ -1,55 +0,0 @@
-// +build !go1.9
-
-package swag
-
-import (
-	"sort"
-	"sync"
-)
-
-// indexOfInitialisms is a thread-safe implementation of the sorted index of initialisms.
-// Before go1.9, this may be implemented with a mutex on the map.
-type indexOfInitialisms struct {
-	getMutex *sync.Mutex
-	index    map[string]bool
-}
-
-func newIndexOfInitialisms() *indexOfInitialisms {
-	return &indexOfInitialisms{
-		getMutex: new(sync.Mutex),
-		index:    make(map[string]bool, 50),
-	}
-}
-
-func (m *indexOfInitialisms) load(initial map[string]bool) *indexOfInitialisms {
-	m.getMutex.Lock()
-	defer m.getMutex.Unlock()
-	for k, v := range initial {
-		m.index[k] = v
-	}
-	return m
-}
-
-func (m *indexOfInitialisms) isInitialism(key string) bool {
-	m.getMutex.Lock()
-	defer m.getMutex.Unlock()
-	_, ok := m.index[key]
-	return ok
-}
-
-func (m *indexOfInitialisms) add(key string) *indexOfInitialisms {
-	m.getMutex.Lock()
-	defer m.getMutex.Unlock()
-	m.index[key] = true
-	return m
-}
-
-func (m *indexOfInitialisms) sorted() (result []string) {
-	m.getMutex.Lock()
-	defer m.getMutex.Unlock()
-	for k := range m.index {
-		result = append(result, k)
-	}
-	sort.Sort(sort.Reverse(byLength(result)))
-	return
-}