support api templates

tools/goctl/util/head.go

@@ -1,11 +0,0 @@
-package util
-
-var headTemplate = `// Code generated by goctl. DO NOT EDIT!
-// Source: {{.source}}`
-
-func GetHead(source string) string {
-	buffer, _ := With("head").Parse(headTemplate).Execute(map[string]interface{}{
-		"source": source,
-	})
-	return buffer.String()
-}