Remove completed items from Service Mesh Roadmap
Remove completed items from Service Mesh Roadmap

The Service Mesh branch has already been merged into the main branch,
and Ingress has been released as stable, so removed those two items from
the roadmap.

Signed-off-by: Marga Manterola <40e1020be04c1f65604499a66c43c6d3c53a6742@isovalent.com>

cilium/cilium,michi-covalent/cilium,michi-covalent/cilium,michi-covalent/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium