Remove testcase issue link from session
Removes links to testcase issues in test session issues to reduce system notes as discussed here: https://gitlab.com/gitlab-org/gitlab/-/issues/283926#note_551629708
Edited by James Nutt
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
Removes links to testcase issues in test session issues to reduce system notes as discussed here: https://gitlab.com/gitlab-org/gitlab/-/issues/283926#note_551629708