[xchat-gnome] Removed Polish translation

[Piotr Drąg <piotrdrag src gnome org>]

commit bf8dcd227659e9a6455b175d5ee16480dbdc7fba
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Jan 11 15:53:26 2015 +0100

    Removed Polish translation
    
    Last updated in 2006 (that's 9 years ago), it's doing more harm than
    good at this point. It can always be brought back from git, if anyone's
    interested.

 po/LINGUAS |    1 -
 po/pl.po   | 4523 ------------------------------------------------------------
 2 files changed, 0 insertions(+), 4524 deletions(-)
---
diff --git a/po/LINGUAS b/po/LINGUAS
index 64b3865..f27122e 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -40,7 +40,6 @@ nb
 oc
 or
 pa
-pl
 pt
 pt_BR
 ro