[gstreamermm] configure.ac: Remove libxml++ package dependency.

[José Alburquerque <jaalburqu src gnome org>]

commit 91902f622602912c89f2999fccead45d6c18ac14
Author: José Alburquerque <jaalburquerque gmail com>
Date:   Mon Jul 22 12:48:20 2013 -0400

    configure.ac: Remove libxml++ package dependency.
    
        * configure.ac: The usage of libxml2 has ben removed from the C API in
        versions 1.0 and above so do the same here.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 9b47cac..cfdde16 100644
--- a/configure.ac
+++ b/configure.ac
@@ -57,7 +57,7 @@ AS_IF([test "x$enable_static" = xyes],
 # The format below is used so that the requirements appear nicely in the .pc
 # file.
 AC_SUBST([GSTREAMERMM_MODULES],
-         ['giomm-2.4 >= 2.36.0 libxml++-2.6 >= 2.14[]m4_foreach([gstmm_mod],
+         ['giomm-2.4 >= 2.36.0[]m4_foreach([gstmm_mod],
          [[], [-allocators], [-app], [-audio], [-base], [-check],
            [-controller], [-fft], [-net], [-pbutils], [-plugins-base],
            [-riff], [-rtp], [-sdp], [-tag], [-video]],