build-aux/bin/bison++.in: Remove `set -x'.

Signed-off-by: Roland Levillain <roland@lrde.epita.fr>

ChangeLog

+2012-02-20  Roland Levillain  <roland@lrde.epita.fr>
+
+	* build-aux/bin/bison++.in: Remove `set -x'.
+
 2012-02-20  Akim Demaille  <demaille@gostai.com>
 
 	maint: upgrade bison++.

build-aux/bin/bison++.in

 #! /bin/sh
-set -x
+
 # Exit status.
 status=0