removed unecessary lines for docker install

* script was trying to copy file from a source
	that doesn't exist to destination that does.
* variable DOCKER_BRANCH no longer used.

Change-Id: I50fd55e97dfc4eaaa3c1f2bfc42e8cfc0e76cdf4
diff --git a/lib/nova_plugins/hypervisor-docker b/lib/nova_plugins/hypervisor-docker
index 2451982..ac509c5 100644
--- a/lib/nova_plugins/hypervisor-docker
+++ b/lib/nova_plugins/hypervisor-docker
@@ -24,7 +24,6 @@
 
 # Set up default directories
 DOCKER_DIR=$DEST/docker
-DOCKER_BRANCH=${DOCKER_BRANCH:-master}
 
 DOCKER_UNIX_SOCKET=/var/run/docker.sock
 DOCKER_PID_FILE=/var/run/docker.pid
@@ -55,8 +54,6 @@
 function configure_nova_hypervisor() {
     iniset $NOVA_CONF DEFAULT compute_driver docker.DockerDriver
     iniset $GLANCE_API_CONF DEFAULT container_formats ami,ari,aki,bare,ovf,docker
-
-    sudo cp -p ${DOCKER_DIR}/nova-driver/docker.filters $NOVA_CONF_DIR/rootwrap.d
 }
 
 # install_nova_hypervisor() - Install external components