Use the default `url` tag instead

`url` change:
https://docs.djangoproject.com/en/1.8/internals/deprecation/#deprecation-removed-in-1-5
See notes for the url tag change

Change-Id: Ie565ee03800d10717270fe28c017576533e8fe0f

cloudkittydashboard/dashboards/project/reporting/templates/reporting/index.html

@@ -1,6 +1,5 @@
 {% extends 'base.html' %}
 {% load i18n %}
-{% load url from future %}
 
 {% block title %}{% trans "Reporting" %}{% endblock %}