ENT-969: Partial revert of "ENT-945 Update IDVerification interfaces to account for SSOVerification"

Remove this flaky test.

update studio-frontend version to 1.8.0

request cache some more stuff

Optimize dictionary combination

This partially reverts commit ee1c3a45.
The migration files introduced by the commit have been kept since they have been run
already on several enviornments.

retrap focus for seat unenroll survey a11y

learner-4715

Cache get_group_id_for_user

learner-4715

LEARNER-4700: Converts credentials to plugin

Updates to use the is_anonymous flag of basket calculate

[LEARNER-4913]

Update retirement APIs to match spec

LEARNER-4880 added confirmation modal for account deletion

Yro/EDUCATOR 2700

make userorgtag deletable

UnregisteredLearnerCohortAssignments can retire users.

Prepend unicode signature (BOM) to csv reports

Changes the DeletableByUserValue delete algorithm.

Update support form.

TE-2546 Remove obsolete requirements files

Yro/EDUCATOR 2644

ENT-945 Apply logic for taking into account SSOVerifications

asadiqbal08- ENT-645 - Enterprise version bump 

[ENT-645]- Updated the messages when a learner leave an organization.

for MS Excel 2013 compatibility