Removed the double entry Thomas Arendsen Hein...

Bernhard Reiter · Bernhard Reiter · commit 66a064b9017a · 2009-09-09T07:33:07.000Z
...his last name is "Arendsen Hein", so the first entry is in correct
sorting order for last names.
diff --git a/doc/acknowledgements.txt b/doc/acknowledgements.txt
@@ -51,7 +51,6 @@ Charles Groves,
 Engelbert Gruber,
 Bruce Guenter,
 Tamás Gulácsi,
-Thomas Arendsen Hein,
 Juergen Hermann,
 Tobias Herp,
 Uwe Hoffmann,
