setup.sh: Drop unnecessary OS constant.

diff --git a/setup.sh b/setup.sh
index 703f27d29ece80f6ce8e3e79d06fdffaac9eaad2..fe584a195a9379ce5027d3b9dcd2226e4a6a0ac3 100755 (executable)
--- a/setup.sh
+++ b/setup.sh
@@ -32,7 +32,6 @@ if installed git; then
 
     generate gitconfig .m4 m4 \
         -DPATIENCE="$PATIENCE" \
-        -DOS=`os` \
         -DPWD="`pwd`"
     link gitconfig ~/.gitconfig
 fi