[CORD-2017]
Change mock and single scenario head node VM's from headnode to head1,
making more uniform with physical scenarios and muscle memory

Change-Id: Ia9fa0992235772fe881bd07d08ad6947be047ffe
diff --git a/scenarios/mock/config.yml b/scenarios/mock/config.yml
index 03c6ef9..99f3d86 100644
--- a/scenarios/mock/config.yml
+++ b/scenarios/mock/config.yml
@@ -27,14 +27,8 @@
 head_vm_cpu: 4
 head_vm_ip: "192.168.46.100"
 
-vagrant_vms:
-  - headnode
-
-buildnode: headnode
-headnode: headnode
-
 physical_node_list:
-  - name: headnode
+  - name: head1
     ipv4_last_octet: 1
     aliases:
       - head
@@ -95,10 +89,10 @@
       ansible_connection: local
 
   build:
-    headnode:
+    head1:
 
   head:
-    headnode:
+    head1:
 
   compute: