1 files changed, 0 insertions, 60 deletions
diff --git a/go/util/concurrent_read_map.go b/go/util/concurrent_read_map.go
deleted file mode 100644
index 28b6ae0f1..000000000
--- a/go/util/concurrent_read_map.go
+++ /dev/null
@@ -1,60 +0,0 @@
-package util
-
-import (
-	"sync"
-)
-
-// A mostly for read map, which can thread-safely
-// initialize the map entries.
-type ConcurrentReadMap struct {
-	sync.RWMutex
-
-	items map[string]interface{}
-}
-
-func NewConcurrentReadMap() *ConcurrentReadMap {
-	return &ConcurrentReadMap{items: make(map[string]interface{})}
-}
-
-func (m *ConcurrentReadMap) initMapEntry(key string, newEntry func() interface{}) (value interface{}) {
-	m.Lock()
-	defer m.Unlock()
-	if value, ok := m.items[key]; ok {
-		return value
-	}
-	value = newEntry()
-	m.items[key] = value
-	return value
-}
-
-func (m *ConcurrentReadMap) Get(key string, newEntry func() interface{}) interface{} {
-	m.RLock()
-	if value, ok := m.items[key]; ok {
-		m.RUnlock()
-		return value
-	}
-	m.RUnlock()
-	return m.initMapEntry(key, newEntry)
-}
-
-func (m *ConcurrentReadMap) Find(key string) (interface{}, bool) {
-	m.RLock()
-	value, ok := m.items[key]
-	m.RUnlock()
-	return value, ok
-}
-
-func (m *ConcurrentReadMap) Items() (itemsCopy []interface{}) {
-	m.RLock()
-	for _, i := range m.items {
-		itemsCopy = append(itemsCopy, i)
-	}
-	m.RUnlock()
-	return itemsCopy
-}
-
-func (m *ConcurrentReadMap) Delete(key string) {
-	m.Lock()
-	delete(m.items, key)
-	m.Unlock()
-}