Remove VMBuilder download/install tasks

roles/gitian/defaults/main.yml

@@ -1,8 +1,5 @@
 ---
 gitian_user: vagrant
-download_directory: /tmp/gitian
-vm_builder_name: 'vm-builder-0.12.4+bzr494'
-vm_builder_url: 'http://archive.ubuntu.com/ubuntu/pool/universe/v/vm-builder/vm-builder_0.12.4+bzr494.orig.tar.gz'
 gitian_builder_url: "{{ lookup('env','GITIAN_BUILDER_URL') }}"
 gitian_builder_version: "{{ lookup('env','GITIAN_BUILDER_VERSION') }}"
 zcash_git_repo_url: https://github.com/zcash/zcash

roles/gitian/tasks/main.yml

@@ -86,23 +86,6 @@
     group: root
     mode: "0644"
 
-- name: Create directory for downloaded files.
-  file:
-    state: directory
-    dest: "{{ download_directory }}"
-    mode: "0755"
-
-- name: Download and extract VM builder source code.
-  unarchive:
-    src: "{{ vm_builder_url }}"
-    dest: "{{ download_directory }}"
-    remote_src: yes
-
-- name: Install VM builder Python module.
-  command: "python setup.py install"
-  args:
-    chdir: "/tmp/gitian/{{ vm_builder_name }}"
-
 - name: Install lxc-net configuration.
   template:
     src: lxc-net