docker group already exists

Change-Id: Iac106f536fdc8e72210778d40f612850876f61f7
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index 6acd426..3fbdee7 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -53,7 +53,6 @@
     npm install karma --save-dev
 
     # set up docker priviledges
-    sudo groupadd docker
     sudo usermod -aG docker jenkins
     
     #TODO clean up