Revert change to .gitreview
Revert change to .gitreview

Addition of "defaultremote" config is causing "git review" to behave
differently than before.

Change-Id: I88d46dfc8fba1c835e2a7f6f8df26a994bd5bd81

ramineni/my_congress,ekcs/congress,ramineni/my_congress,ekcs/congress,ekcs/congress,ekcs/congress,ramineni/my_congress,openstack/congress,ramineni/my_congress,openstack/congress