docker: remove nsswitch.conf

Signed-off-by: Iavael <905853+iavael@users.noreply.github.com>

scripts/build-docker

@@ -32,8 +32,6 @@ mkdir -p "${IMAGEDIR}"/var/etcd
 mkdir -p "${IMAGEDIR}"/var/lib/etcd
 cp "${BINARYDIR}"/etcd "${BINARYDIR}"/etcdctl "${BINARYDIR}"/etcdutl "${IMAGEDIR}"
 
-cp ./nsswitch.conf "${IMAGEDIR}"
-
 cat ./"${DOCKERFILE}" > "${IMAGEDIR}"/Dockerfile
 
 if [ -z "$TAG" ]; then