[Xfce-i18n] www.xfce.org obsolete translations

[gymka]

started translate www.xfce.org, there is a lot of old obsolete strings.
why they are still there? eg.
1. in site users see 3 latest news, in translation file there is 8 news,
so translation of 5 is waste of time.
2. there is tour for 4.4 and for 4.6 versions. why? on site there is no
link to them, so nobody will see my translations, it will be only waste
of precious time:)

i not reviewed whole translation file, but there definitely are more
obsolete strings.

my suggestion: remove obsolete files/strings.