Stop using v2 identity API

v2 identity API was deprecated in Mitaka. There is only a one test
remaining that still relies on the v2 identity API. This patch replaces
v2 with v3.

Change-Id: Iaeb9153084c6864b0982902bbb2ae9c0233266a6
3 files changed
tree: 1c90851b445edebe89980746f903ee668f8a7c33
  1. neutron/