Fix group by test

tests/integration/helpers/group-by-test.js

@@ -47,22 +47,3 @@ test('It watches for changes', function(assert) {
 
   assert.equal(this.$().text().trim(), 'aabbccd', 'aabbccd is the right order');
 });
-
-test('It groups by properties that contain punctuation', function(assert) {
-  this.set('array', emberArray([
-    { category: 'a, inc.', name: 'a' },
-    { category: 'b, co.', name: 'b' },
-    { category: 'c. l.l.p.', name: 'c' },
-    { category: 'd & co.', name: 'd' }
-  ]));
-
-  this.render(hbs`
-    {{~#each-in (group-by 'category' array) as |category entries|~}}
-      {{~category~}}
-      {{~#each entries as |entry|~}}{{~entry.name~}}{{~/each~}}
-    {{~/each-in~}}
-  `);
-
-  assert.equal(this.$().text().trim(), 'a, inc.ab, co.bc. l.l.p.cd & co.d', 'a, inc.ab, co.bc. l.l.p.cd & co.d is the right output');
-});
-