Remove debug to file from OS X launcher. Closes #1777

CHANGELOG

@@ -1,5 +1,8 @@
 #Nmap Changelog ($Id$); -*-text-*-
 
+o [Zenmap][GH#1777] Stop creating a debugging output file 'tmp.txt' on the
+  desktop in macOS. [Roland Linder]
+
 o [Nping] Address build failure under libc++ due to "using namespace std;" in
   several headers, resulting in conflicting definitions of bind(). Reported by
   StormBytePP and Rosen Penev. [Daniel Miller]

zenmap/install_scripts/macosx/launcher.sh

@@ -41,10 +41,6 @@ if [ -z ${lang+x} ]; then
   export LANG="`echo $lang`.UTF-8"
 fi
 
-echo $LANG > ~/Desktop/tmp.txt
-echo " | " >> ~/Desktop/tmp.txt
-echo $lang >> ~/Desktop/tmp.txt
-
 if test -f "$bundle_lib/charset.alias"; then
     export CHARSETALIASDIR="$bundle_lib"
 fi