Fix _populate_token_dates method signature
Fix _populate_token_dates method signature

For some reason the _populate_token_dates() method was accepting trust as a
keyword argument, but it was never used in the method. This commit removes
trust as a keyword argument from _populate_token_dates.

Change-Id: I4e6219767b731218d4727f229772ff938a8e56f5

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