Removal of imports within functions
Removal of imports within functions

This patch removes five occurances of the same function scoped
fernet import by refactoring the import name and variable names.

Change-Id: Ie77105c359f2f48b13f48326913a14535727eab1

ilay09/keystone,openstack/keystone,rajalokan/keystone,ilay09/keystone,mahak/keystone,rajalokan/keystone,mahak/keystone,mahak/keystone,ilay09/keystone,rajalokan/keystone,openstack/keystone,openstack/keystone