Why is the delete button dimmed and not available in the Program tool of Procore Drive?
No user, regardless of permission level, has the ability to delete anything in the Program tool in Procore Drive. This is why the Delete button is dimmed to inform you that it is not available.
If you want to delete the program from Procore's Program tool, you can clear the current program by going to the Program tool on Procore web (app.procore.com). See Configure Advanced Settings: Project Program.