Remove duplicate
diff --git a/THANKS b/THANKS
index 81db0c1..3d973ab 100644
--- a/THANKS
+++ b/THANKS
@@ -42,4 +42,3 @@
 Vassili Courzakis <vcoxvco@googlemail.com>
 Wojciech Michalski <wmichalski@quay.pl>
 Wolfgang Glunz <Wolfgang.Glunz@gmx.de>
-Wojciech Michalski <wmichalski@quay.pl>