[gnome-shell] Remove check for GTK+-3.0 compiled Mutter

[Owen Taylor <otaylor src gnome org>]

commit d2f675e41c2438a2a317bd6f1ae6524ad5c61b7a
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Wed Dec 22 14:36:07 2010 -0500

    Remove check for GTK+-3.0 compiled Mutter
    
    Mutter no longer optionally builds with GTK+-2.0, so we don't
    need to check for it. And the specific form of the check broke
    with recent changes to the naming of libraries for GTK+.

 configure.ac |    8 --------
 1 files changed, 0 insertions(+), 8 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 827920a..f78ec43 100644
--- a/configure.ac
+++ b/configure.ac
@@ -165,14 +165,6 @@ changequote([,])dnl
 AC_PATH_PROG(mutter, [mutter])
 AC_SUBST(mutter)
 
-AC_MSG_CHECKING([if mutter was compiled with GTK+-3.0])
-if $PKG_CONFIG --libs libmutter-private | grep gtk-x11-3 >/dev/null; then
-  AC_MSG_RESULT(yes)
-else
-  AC_MSG_RESULT(no)
-  AC_MSG_ERROR([GNOME Shell requires Mutter to be compiled against GTK+-3.0])
-fi
-
 AC_CONFIG_FILES([
   Makefile
   data/Makefile