libnetwork/osl: let's not do this, etc.

No context in the commit that added it, but PR discussion shows that
the API was mostly exploratory, and it was 8 Years go, so let's not
head in that direction :) https://github.com/moby/libnetwork/commit/b6467848599a1b9ad504ba8f10fdce07afb4ea76

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

libnetwork/osl/sandbox.go

@@ -156,8 +156,6 @@ type Info interface {
 	// directly connected routes are stored on the particular interface they
 	// refer to.
 	StaticRoutes() []*types.StaticRoute
-
-	// TODO: Add ip tables etc.
 }
 
 // Interface represents the settings and identity of a network device. It is