test(packer): make image builder simplier.

tests/cloud-init/opensuse-gnome.user-data.yml

@@ -20,19 +20,15 @@ packages:
   - bash-completion
   - distribution-release
   - git
+  - go
   - golang-packaging
   - htop
   - make
   - rpmbuild
+  - rsync
   - vim
 
 write_files:
-  # Set some bash aliases
-  - path: /home/${username}/.bashrc
-    append: true
-    content: |
-      [[ -f ~/.bash_aliases ]] && source ~/.bash_aliases
-
   # Setup shared directory
   - path: /etc/fstab
     append: true