We used to link program cards on the LMS program listing page to the marketing site. Those cards now link to detail pages also hosted by the LMS, rendering that functionality obsolete.

ECOM-5063

TNL-5817

Ability to create two or more LTI consumers through the Django admin with an empty instance_guid field.

TNL-5886

TNL-5953

TNL-5939

TNL-1955

These lines are now being run in async tasks anyways, so we can remove this
decorator and rely on the async task to retry itself. Also cleans up a few
pylint violoations noticed in subsection_grade.py.

Tests have been updated to match new behavior.

for TNL-5895

This reverts commit e80d9b57.

The column is populated with the current timestamp when a passing grade
is persisted for the first time.  "Passing grade" is defined as having a
non-blank value for letter_grade.

TNL-5888