Removed docker version requirement

Change-Id: I9f04db46706bf6453def09ca1e22e0db918d811b
Closes-Bug: #1237581
diff --git a/lib/nova_plugins/hypervisor-docker b/lib/nova_plugins/hypervisor-docker
index 427554b..70b1b6b 100644
--- a/lib/nova_plugins/hypervisor-docker
+++ b/lib/nova_plugins/hypervisor-docker
@@ -37,7 +37,6 @@
 DOCKER_REGISTRY_IMAGE_NAME=docker-registry
 DOCKER_REPOSITORY_NAME=${SERVICE_HOST}:${DOCKER_REGISTRY_PORT}/${DOCKER_IMAGE_NAME}
 
-DOCKER_PACKAGE_VERSION=${DOCKER_PACKAGE_VERSION:-0.6.1}
 DOCKER_APT_REPO=${DOCKER_APT_REPO:-https://get.docker.io/ubuntu}
 
 
@@ -72,7 +71,7 @@
     fi
 
     # Make sure Docker is installed
-    if ! is_package_installed lxc-docker-${DOCKER_PACKAGE_VERSION}; then
+    if ! is_package_installed lxc-docker; then
         die $LINENO "Docker is not installed.  Please run tools/docker/install_docker.sh"
     fi