m4: Drop libxml2 version number from configure help

We don't include this information for any other library, and
having it there means there are two places we need to change
every time the required version is bumped.

configure will provide the user with a nice error message,
which includes the required version, if libxml2 found on the
system is too old.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>

diff --git a/m4/virt-libxml.m4 b/m4/virt-libxml.m4
index 9aefbdc3f14ce1e274228e983075f19d09ab8d1c..cce54d88fb1996c9dcfbdc5175b97b969b49d4b4 100644 (file)
--- a/m4/virt-libxml.m4
+++ b/m4/virt-libxml.m4
@@ -18,7 +18,7 @@ dnl <http://www.gnu.org/licenses/>.
 dnl
 
 AC_DEFUN([LIBVIRT_ARG_LIBXML], [
-  LIBVIRT_ARG_WITH([LIBXML], [libxml-2.0 (>= 2.9.1) location], [check])
+  LIBVIRT_ARG_WITH([LIBXML], [libxml-2.0 location], [check])
 ])
 
 AC_DEFUN([LIBVIRT_CHECK_LIBXML], [