Remove the repetition words in  identity-fernet-token-faq.rst
Remove the repetition words in  identity-fernet-token-faq.rst

Change-Id: Ie63e5a2802d9652e8a5894df7a409b79286b165e

openstack/keystone,openstack/keystone,mahak/keystone,mahak/keystone,openstack/keystone,mahak/keystone