[Review] Request from 'schubi2' @ 'yast/yast-autoinstallation/review_140806_export_deleted_package_selection'

Please review the following changes:
  * da63299 packaging
  * 4d4ec19 export removed packages correctly

`remove_packages` is used just once, you can simply assign the result to the hash: `software["remove-packages"] = locked_packages`