Update tests to reflect unencoded commas in URLs

I can’t find the changelog for this but it looks like somewhere someone
has decided that commas don’t need to be URL-encoded. This is true for
use in `href` attributes because it’s unambiguous that the comma is part
of the URL (unlike a closing quote for example, which could be
misinterpreted as HTML syntax).

This commit jut changes the test to reflect that the URLs generated by
Flask now have raw commas in them.

tests/app/main/views/test_activity.py

@@ -1,7 +1,7 @@
 import json
 import uuid
 from functools import partial
-from urllib.parse import parse_qs, quote, urlparse
+from urllib.parse import parse_qs, urlparse
 
 import pytest
 from flask import url_for
@@ -600,7 +600,7 @@ def test_get_status_filters_constructs_links(client_request):
     ret = get_status_filters(Service({'id': 'foo'}), 'sms', STATISTICS)
 
     link = ret[0][2]
-    assert link == '/services/foo/notifications/sms?status={}'.format(quote('sending,delivered,failed'))
+    assert link == '/services/foo/notifications/sms?status={}'.format('sending,delivered,failed')
 
 
 def test_html_contains_notification_id(