style: small style fixes (#3063)

* style(babel-prompt): Using else if instead of double blocks

* style(Creator): shouldInitGit doesn't need to be async

Author: trickstival

packages/@vue/cli/lib/Creator.js

@@ -135,7 +135,7 @@ module.exports = class Creator extends EventEmitter {
 
     // intilaize git repository before installing deps
     // so that vue-cli-service can setup git hooks.
-    const shouldInitGit = await this.shouldInitGit(cliOptions)
+    const shouldInitGit = this.shouldInitGit(cliOptions)
     if (shouldInitGit) {
       logWithSpinner(`🗃`, `Initializing git repository...`)
       this.emit('creation', { event: 'git-init' })
@@ -449,7 +449,7 @@ module.exports = class Creator extends EventEmitter {
     return prompts
   }
 
-  async shouldInitGit (cliOptions) {
+  shouldInitGit (cliOptions) {
     if (!hasGit()) {
       return false
     }

packages/@vue/cli/lib/promptModules/babel.js

@@ -13,10 +13,8 @@ module.exports = cli => {
       if (!answers.useTsWithBabel) {
         return
       }
-    } else {
-      if (!answers.features.includes('babel')) {
-        return
-      }
+    } else if (!answers.features.includes('babel')) {
+      return
     }
     options.plugins['@vue/cli-plugin-babel'] = {}
   })