remove non-tsa content

copyright.md

doc.md

doc/accounts.md

doc/admins.md

doc/bits-and-pieces.md

doc/extra.md

doc/hardware-requirements.md

doc/how-to-get-help.md

doc/naming-scheme.md

doc/reporting-email-problems.md

doc/services.md

doc/ssh-jump-host.md

doc/static-sites.md

doc/svn-accounts.md

howto.md

howto/backup.md

howto/build_and_upload_debs.md

howto/cache.md

howto/conference.md

howto/create-a-new-user.md