Remove default image logic for Ironic from DevStack

The logic to set the default image for Ironic has been moved into the
Ironic tree. This patch is just removing it from DevStack.

Change-Id: Iaeb177f194adc83e40d86696e5553f9f72bbd1f9
Depends-On: Id828b41dc44113ce1cd094ce5fc245989699d4ff
diff --git a/stackrc b/stackrc
index 19f5b53..d8d0ee4 100644
--- a/stackrc
+++ b/stackrc
@@ -647,14 +647,9 @@
             IMAGE_URLS+="http://ca.downloads.xensource.com/OpenStack/cirros-0.3.4-x86_64-disk.vhd.tgz"
             IMAGE_URLS+=",http://download.cirros-cloud.net/${CIRROS_VERSION}/cirros-${CIRROS_VERSION}-x86_64-uec.tar.gz";;
         ironic)
-            # Ironic can do both partition and full disk images, depending on the driver
-            if [[ -z "${IRONIC_DEPLOY_DRIVER%%agent*}" ]]; then
-                DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-cirros-${CIRROS_VERSION}-x86_64-disk}
-            else
-                DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-cirros-${CIRROS_VERSION}-x86_64-uec}
-            fi
-            IMAGE_URLS+="http://download.cirros-cloud.net/${CIRROS_VERSION}/cirros-${CIRROS_VERSION}-x86_64-uec.tar.gz"
-            IMAGE_URLS+=",http://download.cirros-cloud.net/${CIRROS_VERSION}/cirros-${CIRROS_VERSION}-x86_64-disk.img";;
+            # NOTE(lucasagomes): The logic setting the default image
+            # now lives in the Ironic tree
+            ;;
         *) # Default to Cirros with kernel, ramdisk and disk image
             DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-cirros-${CIRROS_VERSION}-${CIRROS_ARCH}-uec}
             IMAGE_URLS+="http://download.cirros-cloud.net/${CIRROS_VERSION}/cirros-${CIRROS_VERSION}-${CIRROS_ARCH}-uec.tar.gz";;