Tim Vernum 2811b97b76
Remove reserved roles for code search (#50115)
The "code_user" and "code_admin" reserved roles existed to support
code search which is no longer included in Kibana.

The "kibana_system" role included privileges to read/write from the
code search indices, but no longer needs that access.

Backport of: #50068
2019-12-13 10:22:55 +11:00
..