Replace six.iteritems with dict.items(Part-1)

according to https://wiki.openstack.org/wiki/Python3,
now we should avoid using six.iteritems and replace
it with dict.items.

Change-Id: I8753e80b34c0f86cf70aebc3bcbd3392ee933f62
Partial-Bug: #1680761
2 files changed
tree: 88c25aa80229bba71e214cb24a758d1be9790a6b
  1. neutron/