rm -f depcomp and friends so that we don't have to use

-f flag for autoreconf. Fixed an issue noticed after
upgrading to autoconf 2.52 -> 2.57, automake 1.5 -> 1.7
and libtool 1.4.2 -> 1.5.


git-svn-id: https://www.opensc-project.org/svnp/opensc/trunk@1267 c6295689-39f2-0310-b995-f0e70906c6a9

bootstrap

@@ -5,6 +5,6 @@ set -x
 if test -f Makefile; then
   make distclean
 fi
-rm -rf *.cache *.status *.log *.m4
+rm -rf *.cache *.status *.guess *.sub *.log *.m4 ltmain.sh depcomp
 cat aclocal/*.m4 > acinclude.m4
 autoreconf --verbose --install