
According to [1] d3.js will be loaded by horizon on the each page
so we don't need to include it manually.
[1] 4e0ee573db/openstack_dashboard/utils/settings.py (L196)
Story: 2004051
Task: 30403
Change-Id: Icb56905a802f9efba7f9c6558372b62ab5eb9bd4