How to delete a Git repo for Azure DevOps project from Web Browser

Step 1: Select Repos, Files.
   


Step 2: From the repo drop-down, select Manage repositories.


Step 3: Select the name of the repository from the Repositories list, choose the “…” menu, and then choose Delete repository.


Step 4: Confirm the deletion of the repository by typing the repo’s name and selecting Delete.



Credit : https://learn.microsoft.com/en-us/azure/devops/repos/git/delete-existing-repo?view=azure-devops&tabs=browser