sql: Remove dead helpers
sql: Remove dead helpers

'assertTableCountsMatch' should have been removed in change
I41584c652ab34a267009136ee2a2e159ee2f2a6e ("sql: Squash mitaka
migrations")

'does_constraint_exist' should have been removed in change
Ic499a996e1b9c6f0a9d885b4a9e655008002d49f ("sql: Squash queens
migrations")

'does_pk_exist' should have been removed in change
I6beb8c9c827546757f2d7673a917b98f8b917012 ("sql: Squash rocky
migrations")

'assertTableExists' should have been removed in change
I58e4b6833036a25ea8a1202c87ceebdbe932b447 ("sql: Squash stein
migrations")

'insert_dict', 'does_index_exist', and 'does_unique_constraint_exist'
should have been removed in change
Ifc71efb8609bc26ce998a9fa48b207abf8b9a38b ("sql: Squash train
migrations")

'does_fk_exist' should have been removed in change
Ia1495cd4683d6631be2691e816734d01b03037a3 ("sql: Squash ussuri
migrations")

Change-Id: Id3d2769af6004bd4d4792c4488ac5eba94a5a776
Signed-off-by: Stephen Finucane <4725dc7f3632bf126d9fbdc30c347e91e8d2fe16@redhat.com>

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