fix(eslintrc): remove not existent plugin

Author: Walker Leite

template/.eslintrc.js

@@ -25,13 +25,6 @@ module.exports = {
   },
   // add your custom rules here
   rules: {
-    // don't require .vue extension when importing
-    'import/extensions': ['error', 'always',
-      {
-      js: 'never',
-      vue: 'never'
-      }
-    ],
     // disallow reassignment of function parameters
     // disallow parameter object manipulation except for specific exclusions
     'no-param-reassign': ['error',