Comment 1 for bug 1685799

Reviewed: https://review.openstack.org/459292
Committed: https://git.openstack.org/cgit/openstack/kuryr-kubernetes/commit/?id=b5c6395cf1080fe5049e2aa26cead8b7cb057173
Submitter: Jenkins
Branch: master

commit b5c6395cf1080fe5049e2aa26cead8b7cb057173
Author: Daniel Mellado <email address hidden>
Date: Mon Apr 24 12:44:06 2017 +0000

    Delete docker socket file only if exists

    Using devstack to install kuryr-k8s gets to a point when it breaks as
    it's trying to delete the docker socket file, which doesn't exist there yet.
    This commit fixes it by having it only delete if it exists.

    Closes-Bug: 1685799

    Change-Id: Id16ea172337df0b999684b53f986a7bea29f8aa8