Deleting custom actions
Custom actions added to a source server from the default settings on creation or created later for that source server can also be deleted. Deleting a custom action for a source server removes it from that source server and means the action will no longer be available to that source server. Deleting the action for a source server does not remove it from the default settings if the action was defined there as well. To delete a custom action from the default settings to avoid adding it to newly added source servers, go to the Settings → Default post-launch actions page, and delete the action from there. Pre-defined actions cannot be deleted. If a pre-defined action is not required, it can be deactivated.
Locate the action you want to delete in the Actions card view, or use the search field to filter the actions by name. Select the action, and click the Delete button. To confirm, press Delete.