chore: Remove AWS_JS_LAMBDA_RUNTIME check (#225)

* Remove AWS_LAMBDA_JS_RUNTIME check

* Remove link to deleted section in README

Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

README.md

@@ -40,7 +40,6 @@ Gatsby Plugin", and a Gatsby plugin called "gatsby-plugin-netlify":
   (the Netlify build plugin)
 - [Install version 4 beta of `gatsby-plugin-netlify`](#install-the-gatsby-plugin)
   (the Gatsby plugin)
-- [Configure your build to use the correct build image and Node.js runtime](#build-configuration)
 
 ### Install the Netlify build plugin
 

plugin/src/index.ts

@@ -5,7 +5,6 @@ import fs from 'fs-extra'
 
 import { normalizedCacheDir, restoreCache, saveCache } from './helpers/cache'
 import { checkGatsbyConfig, mutateConfig, spliceConfig } from './helpers/config'
-import { checkEnvironment } from './helpers/environment'
 
 // eslint-disable-next-line no-template-curly-in-string
 const lmdbCacheString = 'process.cwd(), `.cache/${cacheDbFile}`'
@@ -37,10 +36,6 @@ export async function onPreBuild({
       `Gatsby sites must publish the public directory, but your site’s publish directory is set to “${PUBLISH_DIR}”. Please set your publish directory to your Gatsby site’s public directory.`,
     )
   }
-  // Only run in CI
-  if (process.env.NETLIFY) {
-    await checkEnvironment({ utils })
-  }
   await restoreCache({ utils, publish: PUBLISH_DIR })
   const CACHE_DIR = normalizedCacheDir(PUBLISH_DIR)