Merge pull request #157 from seemethere/remove_overlay_1809

[18.09] Remove overlay as the default storage driver
Upstream-commit: 54dc76c596e5f5fe8ee76e65a0ac601f8a1d8e8b
Component: packaging

components/packaging/common/dockerd.json

@@ -3,7 +3,6 @@
     "imagePath": "/var/lib/docker-engine/engine.tar",
     "namespace":"docker",
     "args": [
-        "-s", "overlay",
         "--containerd", "/run/containerd/containerd.sock",
         "--default-runtime", "containerd",
         "--add-runtime", "containerd=runc"