* debian/patches/ubuntu_i18n_oneiric.patch:
  - Unset LC_MESSAGES, LC_CTYPE, and LC_COLLATE if they equal LANG,
    in order to prevent that side effects, when connecting to other
    computers via ssh, appear unnecessarily.
  - Do not override the LANG value resulting from sourcing
    /etc/default/locale and ~/.profile.
* debian/patches/36_language_environment_settings.patch:
  - Not applicable any longer, so we drop it.