Remove ephelper and other endpoints code.

appengine/apigen_examples/dumb_counter/service/main.go

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Package service is an example Google Cloud Endpoints service.
-//
-// It implements a really dumb named persistant counter.
-package service
-
-import (
-        "github.com/GoogleCloudPlatform/go-endpoints/endpoints"
-        "github.com/luci/luci-go/appengine/apigen_examples/dumb_counter/dumbCounter"
-        "github.com/luci/luci-go/appengine/ephelper"
-)
-
-// Uncomment this block to make this a Managed VM application.
-func init() {
-        ephelper.Register(endpoints.DefaultServer, &dumbCounter.Example{}, dumbCounter.ServiceInfo, dumbCounter.MethodInfoMap)
-        endpoints.HandleHTTP()
-}