[gnome-tetravex] help: Remove DocBook translations

[Piotr Drąg <piotrdrag src gnome org>]

commit 9491ecbc8e3471660f37cfd586b7ed728ddadda5
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Mar 10 21:32:41 2019 +0100

    help: Remove DocBook translations

 help/LINGUAS        |   4 -
 help/en_GB/en_GB.po | 437 ---------------------------------------------------
 help/eu/eu.po       | 438 ----------------------------------------------------
 help/oc/oc.po       | 337 ----------------------------------------
 help/ru/ru.po       | 218 --------------------------
 5 files changed, 1434 deletions(-)
---
diff --git a/help/LINGUAS b/help/LINGUAS
index 26a5fd5..9f20c21 100644
--- a/help/LINGUAS
+++ b/help/LINGUAS
@@ -5,18 +5,14 @@ cs
 da
 de
 el
-en_GB
 es
-eu
 fr
 gl
 hu
 it
-oc
 pl
 pt_BR
 ro
-ru
 sl
 sr
 sr@latin