remove unnecessary option.

LinusBorg · LinusBorg · commit 111dc0da7a9a · 2018-01-11T00:15:22.000+01:00
eslint-plugin-vue sets this already for us.
diff --git a/template/.eslintrc.js b/template/.eslintrc.js
@@ -3,8 +3,7 @@
 module.exports = {
   root: true,
   parserOptions: {
-    parser: 'babel-eslint',
-    sourceType: 'module'
+    parser: 'babel-eslint'
   },
   env: {
     browser: true,
