It looks like you want to delete a pull request in Azure DevOps. Here’s how you can do that:

1. Navigate to the Pull Request: Open the Azure DevOps portal, and go to the repository where the pull request was created.
2. Access the Pull Request: Click on ‘Pull Requests’ in the left navigation panel, then select the specific pull request you wish to delete.
3. Click on “…” (More Options): In the top-right corner of the pull request overview page, click on the “…” button to reveal more options.
4. Select “Abandon”: In the dropdown menu, choose the “Abandon” option. This will mark the pull request as abandoned rather than deleting it, as Azure DevOps doesn’t allow complete deletion of pull requests. This ensures that there is a historical record of all pull requests, even those that were not merged.

Note that you’ll need the necessary permissions to abandon a pull request. If you don’t have these permissions, you may need to ask an administrator or someone with the necessary rights to perform this action for you.

If you are the project administrator and need to permanently delete information associated with the pull request, you’ll need to work at the level of the Git repository itself, and this may require actions that are beyond the standard Azure DevOps user interface.

Since Azure DevOps retains a history of all pull requests (even when abandoned), it aligns with best practices to keep a record of changes and decisions made within the codebase. If you have specific concerns or needs related to deletion, you may wish to consult with your organization’s policies or with Azure support.