I have a really big client on the east coast. We are automating the deployment of many of the search components in O365, very cool stuff. However, not everything is hugs and kisses. Turns out when you import a search configuration at the tenant level, you may import some Result Types. Unfortunately, there is no link on the main Search page for the tenant admin that will let you delete these result types.
That does not mean it doesn't exist. It does…you just have to guess where it is:
https://{tenant}-admin.sharepoint.com/_layouts/15/manageresulttypes.aspx?level=tenant
Bam…you can now delete any result types you imported… weird that the link is not available on the main search admin page.
Enjoy,
Chris