Merge pull request #979 from easonlin404/fix-comment

fix(comment): remove todo

gin.go

@@ -345,7 +345,6 @@ func (engine *Engine) handleHTTPRequest(context *Context) {
 		}
 	}
 
-	// TODO: unit test
 	if engine.HandleMethodNotAllowed {
 		for _, tree := range engine.trees {
 			if tree.method != httpMethod {