This is needed so we can build the runc shim without grpc as a
transative dependency.
With this change the runc shim binary went from 14MB to 11MB.
The RSS from an idle shim went from about 17MB to 14MB (back around
where it was in in 1.7).
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
As a follow up change to adding a SandboxMetrics rpc to the core
sandbox service, the controller needed a corresponding rpc for CRI
and others to eventually implement.
This leaves the CRI (non-shim mode) controller unimplemented just to
have a change with the API addition to start.
Signed-off-by: Danny Canter <danny@dcantah.dev>
