Remove duplicate key from dictionary
Remove duplicate key from dictionary

In test_data_passed_properly_through_headers() method[1],
'name' key is passed twice in the fixture dictionary.

[1]: glance/tests/unit/common/test_wsgi.py

Co-Author: Abhishek Kekane <abhishek.kekane@nttdata.com>

Change-Id: I7571b5b6f47e0b3afcb1ebc386001a32e83d0d9d
Closes-Bug: #1482129

openstack/glance,openstack/glance,openstack/glance