Merge pull request #1832 from jeanduplessis/update-owners

Update OWNERS.md to remove Upbound maintainers

OWNERS.md

@@ -10,13 +10,7 @@ guidelines and responsibilities for the steering committee and maintainers.
 
 ## Maintainers
 
-* Nic Cope <negz@upbound.io> ([negz](https://github.com/negz))
-* Daniel Mangum <dan@upbound.io> ([hasheddan](https://github.com/hasheddan))
-* Muvaffak Onuş <monus@upbound.io> ([muvaf](https://github.com/muvaf))
+* Daniel Mangum <georgedanielmangum@gmail.com> ([hasheddan](https://github.com/hasheddan))
 * Krish Chowdhary <kchowdha@redhat.com> ([krishchow](https://github.com/krishchow))
-* Hasan Türken <hasan@upbound.io> ([turkenh](https://github.com/turkenh))
-* Alper Rifat Uluçınar <alper@upbound.io> ([ulucinar](https://github.com/ulucinar))
-* Aaron Eaton <aaron@upbound.io>  ([AaronME](https://github.com/AaronME))
 * Carl Henrik Lunde <chlunde@gmail.com> ([chlunde](https://github.com/chlunde))
-* Christopher Haar <chhaar30@googlemail.com> ([haarchri](https://github.com/haarchri))
 * Maximilian Blatt ([MisterMX](https://github.com/MisterMX))