Delete old Jira development panel data

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Problem

Sometimes it would be useful to be able to delete old development panel data.

An example is after a project is imported from one GitLab instance to another #341571 (comment 1544955606), the links to the old project are no longer wanted.

For refinement

Data created in the Jira development panel through the GitLab for Jira app is persisted on the Jira-side, and not in GitLab.

To get rid of the old data we'll need to explore what the Jira APIs allow us to do. The Jira API docs suggest we can bulk delete data (example: bulk delete deployment data).

We should also decide where this would be triggered from. It might make sense for it to happen inside the view accessed from Jira when you select Apps > Manage your apps.

Edited by 🤖 GitLab Bot 🤖