fix: Fix issue #1810 (#1811)

* Fix #1810

* Remove go embed

* Format code

* Remove useless code

Co-authored-by: anqiansong <anqiansong@bytedance.com>

tools/goctl/api/gogen/gen.go

@@ -61,6 +61,10 @@ func DoGenProject(apiFile, dir, style string) error {
 		return err
 	}
 
+	if err := api.Validate(); err != nil {
+		return err
+	}
+
 	cfg, err := config.NewConfig(style)
 	if err != nil {
 		return err