refactor: disable loading project config from rc

packages/@vue/cli-service/__tests__/Service.spec.js

@@ -59,14 +59,6 @@ test('load project options from vue.config.js', () => {
   fs.unlinkSync('/vue.config.js')
 })
 
-test('load project options from .vuerc', () => {
-  fs.writeFileSync('/.vuerc', JSON.stringify({ lintOnSave: false }))
-  const service = createMockService()
-  // vue.config.js has higher priority
-  expect(service.projectOptions.lintOnSave).toBe(false)
-  fs.unlinkSync('/.vuerc')
-})
-
 test('package.json option should take priority', () => {
   fs.writeFileSync('/vue.config.js', `module.exports=${JSON.stringify({ lintOnSave: false })}`)
   mockPkg({

packages/@vue/cli-service/lib/Service.js

@@ -155,6 +155,7 @@ module.exports = class Service {
       resolved = this.pkg.vue
     } else {
       const explorer = cosmiconfig('vue', {
+        rc: false,
         sync: true,
         stopDir: this.context
       })