daemon: Delete deprecated code to remove older cilium-envoy.log at startup
daemon: Delete deprecated code to remove older cilium-envoy.log at startup

We had added a one time `cilium-envoy.log` removal, pre-1.0 stage to remove the cilium log in
older location on users running cilium-envoy setup.
This code simply removes this deprecated code to do this one-time cleanup since we are post
1.1 at this point, and have given enough time for this code to bake.

Fixes: #3050
Signed-Off-By: Manali Bhutiyani <f91afadb65fa57d2313cebbfecb7de1f482fe10f@covalent.io>

cilium/cilium,tklauser/cilium,eloycoto/cilium,tgraf/cilium,michi-covalent/cilium,eloycoto/cilium,eloycoto/cilium,scanf/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,eloycoto/cilium,scanf/cilium,tklauser/cilium,michi-covalent/cilium,cilium/cilium,scanf/cilium,tgraf/cilium,tklauser/cilium,scanf/cilium,tgraf/cilium,michi-covalent/cilium,michi-covalent/cilium,scanf/cilium,tgraf/cilium,tgraf/cilium,scanf/cilium,scanf/cilium,cilium-team/cilium,tgraf/cilium,cilium-team/cilium,tklauser/cilium,eloycoto/cilium,eloycoto/cilium,eloycoto/cilium,tklauser/cilium