sql: Remove duplicated constants
sql: Remove duplicated constants

Change-Id: I2450a6e077ea9fce0f957a0c239ea168c9930c30
Signed-off-by: Stephen Finucane <4725dc7f3632bf126d9fbdc30c347e91e8d2fe16@redhat.com>

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