Remove a validate_token_bind call
Remove a validate_token_bind call

assert_admin is intended to check the roles of the current token to
ensure that there is the admin role. It is basically the v2 equivalent
of @protected for most operations. o

Because keystone requires the auth_context middleware be in the pipeline
we know for any authenticated call a request has passed through this
middleware and so the token bind has already been validated.

We can therefore remove this secondary call. We probably don't need to
worry about the assert_authenticated call however it will produce a
nicer error message if the middleware is not in place.

Change-Id: I2808f0ca9793e892026f083122d4f7266593c496

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