[gnome-sudoku/gnome-3-26] Revert "Add Polish help translation"

[Piotr Drąg <piotrdrag src gnome org>]

commit c36af9eec82f8d4edbdd85260214989328deebba
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Tue Dec 5 03:00:07 2017 +0100

    Revert "Add Polish help translation"
    
    This reverts commit a02a3df33b5effc867133d97af6b19d237d00231.

 help/Makefile.am                     |    2 +-
 help/pl/figures/possible-numbers.png |  Bin 24721 -> 0 bytes
 help/pl/figures/resuming.png         |  Bin 14854 -> 0 bytes
 help/pl/pl.po                        | 1432 ----------------------------------
 4 files changed, 1 insertions(+), 1433 deletions(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index 0f54977..8f41522 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -35,6 +35,6 @@ HELP_FILES = \
        trackers.page                   \
        translate.page
 
-HELP_LINGUAS = ca cs de en_GB el es eu fr gl hu it ko oc pl pt_BR ru sl sr sr@latin sv da zh_CN
+HELP_LINGUAS = ca cs de en_GB el es eu fr gl hu it ko oc pt_BR ru sl sr sr@latin sv da zh_CN
 
 -include $(top_srcdir)/git.mk