diff --git a/kernel/cache/asset.go b/kernel/cache/asset.go
index fce48acdb..d3386e3a2 100644
--- a/kernel/cache/asset.go
+++ b/kernel/cache/asset.go
@@ -104,19 +104,6 @@ var (
 	assetsLock  = sync.Mutex{}
 )
 
-// GetAssets 返回所有资源的副本
-func GetAssets() (ret map[string]*Asset) {
-	assetsLock.Lock()
-	defer assetsLock.Unlock()
-
-	// 指定长度避免分配新内存时扩容和迁移
-	ret = make(map[string]*Asset, len(assetsCache))
-	for k, v := range assetsCache {
-		ret[k] = v
-	}
-	return
-}
-
 // IterateAssets 遍历所有资源，适合只读场景
 func IterateAssets(fn func(path string, asset *Asset) bool) {
 	assetsLock.Lock()
@@ -134,7 +121,7 @@ func FilterAssets(filter func(path string, asset *Asset) bool) (ret map[string]*
 	assetsLock.Lock()
 	defer assetsLock.Unlock()
 
-	ret = make(map[string]*Asset)
+	ret = map[string]*Asset{}
 	for path, asset := range assetsCache {
 		if filter(path, asset) {
 			ret[path] = asset