1. EXEC: create a new OpenShift Application and import it to your workspace (have the server adapter created)
2. EXEC: in the OpenShift Explorer: delete the application

Variant:

1. EXEC: force delete the domain (and have all apps deleted with it)

Result:
The server adapter and the project (with git repository) are still there. We should delete the server adapter and remove the remote from the git repository of the project