You can delete a virtual machine template in the web console.
Deleting a virtual machine template permanently removes it from the cluster.
In the Container-native Virtualization console, click Workloads → Virtual Machine Templates.
You can delete the virtual machine template from this pane, which makes it easier to perform actions on multiple templates in the one pane, or from the Virtual Machine Template Details pane where you can view comprehensive details of the selected template:
Click the Options menu of the template to delete and select Delete Template.
Click the template name to open the Virtual Machine Template Details pane and click Actions → Delete Template.
In the confirmation pop-up window, click Delete to permanently delete the template.