Revert "openqa/server: try turning disk image generation back on"

This reverts commit 9872fe3fc8.
Looks like the i686 base image hasn't been refreshed yet, so
i686 image generation still fails. Curses!

roles/openqa/server/tasks/main.yml

@@ -114,13 +114,13 @@
   changed_when: "1 != 1"
   always_run: true
 
-- name: Create hard disk images (this may take a long time!)
-  command: "/root/openqa_fedora_tools/tools/createhdds.py all --clean"
-  args:
-    chdir: /var/lib/openqa/share/factory/hdd/
-  environment:
-    LIBGUESTFS_BACKEND: direct
-  when: "diskcheck.rc > 0"
+#- name: Create hard disk images (this may take a long time!)
+#  command: "/root/openqa_fedora_tools/tools/createhdds.py all --clean"
+#  args:
+#    chdir: /var/lib/openqa/share/factory/hdd/
+#  environment:
+#    LIBGUESTFS_BACKEND: direct
+#  when: "diskcheck.rc > 0"
 
 - name: Create exports file
   copy: src=exports dest=/etc/exports.d/openqa.exports owner=root group=root mode=0644