fix: eslint issue with ava (#595)

Author: vinayakkulkarni

packages/cna-template/template/frameworks/ava/test/e2e/index.spec.js

@@ -24,6 +24,6 @@ test('Route / exits and render HTML', async (t) => {
 })
 
 // Close server and ask nuxt to stop listening to file changes
-test.after('Closing server and nuxt.js', (t) => {
+test.after('Closing server and nuxt.js', () => {
   nuxt.close()
 })