fix: remove read-pkg

Author: Guillaume Chau

packages/@vue/cli-ui/apollo-server/connectors/folders.js

@@ -2,7 +2,6 @@ const path = require('path')
 const fs = require('fs-extra')
 const LRU = require('lru-cache')
 const winattr = require('@akryum/winattr')
-const readPkg = require('read-pkg')
 
 const hiddenPrefix = '.'
 const isPlatformWindows = process.platform.indexOf('win') === 0
@@ -101,8 +100,9 @@ function readPackage (file, context, force = false) {
       return cachedValue
     }
   }
-  if (fs.existsSync(path.join(file, 'package.json'))) {
-    const pkg = readPkg.sync({ cwd: file })
+  const pkgFile = path.join(file, 'package.json')
+  if (fs.existsSync(pkgFile)) {
+    const pkg = fs.readJsonSync(pkgFile)
     pkgCache.set(file, pkg)
     return pkg
   }

packages/@vue/cli-ui/package.json

@@ -49,7 +49,6 @@
     "node-notifier": "^5.2.1",
     "parse-git-config": "^2.0.2",
     "portfinder": "^1.0.13",
-    "read-pkg": "^4.0.1",
     "semver": "^5.5.0",
     "shortid": "^2.2.11",
     "terminate": "^2.1.0",