style: remove optional return (#1036)

auth.go

@@ -58,7 +58,6 @@ func BasicAuthForRealm(accounts Accounts, realm string) HandlerFunc {
 		// The user credentials was found, set user's id to key AuthUserKey in this context, the user's id can be read later using
 		// c.MustGet(gin.AuthUserKey)
 		c.Set(AuthUserKey, user)
-		return
 	}
 }
 

gin.go

@@ -158,9 +158,9 @@ func (engine *Engine) LoadHTMLGlob(pattern string) {
 		engine.HTMLRender = render.HTMLDebug{Glob: pattern, FuncMap: engine.FuncMap, Delims: engine.delims}
 		return
 	}
+
 	templ := template.Must(template.New("").Delims(engine.delims.Left, engine.delims.Right).Funcs(engine.FuncMap).ParseGlob(pattern))
 	engine.SetHTMLTemplate(templ)
-	return
 }
 
 func (engine *Engine) LoadHTMLFiles(files ...string) {
@@ -168,9 +168,9 @@ func (engine *Engine) LoadHTMLFiles(files ...string) {
 		engine.HTMLRender = render.HTMLDebug{Files: files, FuncMap: engine.FuncMap, Delims: engine.delims}
 		return
 	}
+
 	templ := template.Must(template.New("").Delims(engine.delims.Left, engine.delims.Right).Funcs(engine.FuncMap).ParseFiles(files...))
 	engine.SetHTMLTemplate(templ)
-	return
 }
 
 func (engine *Engine) SetHTMLTemplate(templ *template.Template) {