[aur-general] Remove Request

[Guten]

https://aur.archlinux.org/packages/ruby-tagen/
https://aur.archlinux.org/packages/ruby-retort/
https://aur.archlinux.org/packages/ruby-niceogiri/
https://aur.archlinux.org/packages/ruby-girl_friday/
https://aur.archlinux.org/packages/ruby-blather/

I created all these packages at first place, but now I don't use and
maintaince  them for a long time, please clean them up.


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