[planner] Remove po/sr Latn po, update LINGUAS

[Piotr Drąg <piotrdrag src gnome org>]

commit 695a40dd9a0d3250fe7c07e151f08191899dcf62
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Sep 8 00:27:59 2015 +0200

    Remove po/sr Latn po, update LINGUAS
    
    po/sr latin po is the correct, and complete, translation.

 po/LINGUAS    |    1 -
 po/sr Latn po | 2451 ---------------------------------------------------------
 2 files changed, 0 insertions(+), 2452 deletions(-)
---
diff --git a/po/LINGUAS b/po/LINGUAS
index 98adc6d..7a66763 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -64,7 +64,6 @@ sl
 sq
 sr
 sr latin
-sr Latn
 sv
 ta
 tg