[baobab] Drop compatibility check for AM_SILENT_RULES

[Stefano Facchini <sfacchini src gnome org>]

commit d47daff32ea5fa944fb5483b0c2941499f54177b
Author: Stefano Facchini <stefano facchini gmail com>
Date:   Sun Jul 21 00:57:24 2013 +0200

    Drop compatibility check for AM_SILENT_RULES
    
    The macro is defined in automake 1.11, which we require

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 2bb6188..ed70348 100644
--- a/configure.ac
+++ b/configure.ac
@@ -14,7 +14,7 @@ AC_CANONICAL_TARGET
 
 AM_INIT_AUTOMAKE([1.11 tar-ustar dist-xz no-dist-gzip -Wno-portability])
 AM_MAINTAINER_MODE([enable])
-m4_ifdef([AM_SILENT_RULES],[AM_SILENT_RULES([yes])])
+AM_SILENT_RULES([yes])
 
 # i18n stuff
 IT_PROG_INTLTOOL(0.40.0)