examples/getting-started: revert bind mount for /var/lib/cilium
examples/getting-started: revert bind mount for /var/lib/cilium

This breaks running cilium in Docker on master. The bind mount is
actually not needed as the files are installed within the container.

This reverts commit eca8c985aab1 ("examples/getting-started: add bind
mount for /var/lib/cilium to docker-compose.yml")

Signed-off-by: Tobias Klauser <9249c549618448e4c699e8032ba6c7f0d7fd4b7f@distanz.ch>

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