remove no longer relevant ssr build check (close #4680)

Author: yyx990803

src/server/render.js

@@ -262,7 +262,6 @@ export function createRenderFunction (
     write: (text: string, next: Function) => void,
     done: Function
   ) {
-    checkBuild(component)
     warned = Object.create(null)
     const context = {
       activeInstance: component,
@@ -277,23 +276,3 @@ export function createRenderFunction (
     renderNode(component._render(), true, context)
   }
 }
-
-function checkBuild (component) {
-  let Vue: any = component.constructor
-  while (Vue.super) {
-    Vue = Vue.super
-  }
-  if (Vue.compile && Vue.config.devtools !== false) {
-    console.error(
-      red(`\n[vue-server-renderer] You are using the standalone build (vue/dist/vue.js) for ` +
-      `server-side rendering. It is recommended to use the CommonJS build ` +
-      `(vue/dist/vue.common.js) instead so that the code can run in ` +
-      `production mode by setting NODE_ENV=production. The server renderer ` +
-      `supports the template option regardless of what build you are using.\n`)
-    )
-  }
-}
-
-function red (str) {
-  return '\u001B[1m\u001B[31m' + str + '\u001B[39m\u001B[22m'
-}