Doc for translators: remove obsolete information

One does not need to do that anymore, as long as they use Weblate.
Let's make this section simpler and more to the point.

wiki/src/contribute/how/translate.mdwn

@@ -27,11 +27,6 @@ You can also translate this website, which includes the Tails
 platform|translate/with_translation_platform]] or, for a more technical
 approach, [[using Git|translate/with_Git]].
 
-The translations are peer-reviewed and thus, you need to get into contact with
-a language team if you want to participate.
-In general, you can contact the translation teams via the
-[[mailing list for translators|translate#follow-up]].
-
 Translators should focus on translating and maintaining the
 [[core pages|contribute/l10n_tricks/core_po_files.txt]] first, then on
 the rest of the website.