[glabels] Removed Polish translation

[Piotr Drąg <piotrdrag src gnome org>]

commit 20975776a273e48bbd5d600cdff7040b159ba162
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Oct 5 17:41:39 2014 +0200

    Removed Polish translation
    
    Last updated in 2002 (that's 12 years ago) and with 68 strings translated,
    it's doing more harm than good at this point. It can always be brought back
    from git, but it's probably easier to just start from scratch, if anyone's
    interested.

 po/LINGUAS |    1 -
 po/pl.po   | 3568 ------------------------------------------------------------
 2 files changed, 0 insertions(+), 3569 deletions(-)
---
diff --git a/po/LINGUAS b/po/LINGUAS
index bb512f8..dacb259 100644
--- a/po/LINGUAS
+++ b/po/LINGUAS
@@ -22,7 +22,6 @@ ko
 lv
 nb
 nl
-pl
 pt
 pt_BR
 ru