[libpeas] Fix autogen with latest gnome-common

[Seán de Búrca <sdeburca src gnome org>]

commit 596db299943eaee7ef696c6b16137fd27a106b38
Author: Seán de Búrca <leftmostcat gmail com>
Date:   Mon Aug 26 15:22:13 2013 -0600

    Fix autogen with latest gnome-common
    
    Side-by-side use of IT_PROG_INTLTOOL and AM_GNU_GETTEXT is not supported.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=706835

 configure.ac |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d57c5d2..3ca64db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -71,9 +71,6 @@ dnl ================================================================
 
 IT_PROG_INTLTOOL([0.40.0])
 
-AM_GNU_GETTEXT_VERSION([0.17])
-AM_GNU_GETTEXT([external])
-
 GETTEXT_PACKAGE=libpeas
 AC_SUBST(GETTEXT_PACKAGE)
 AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE,"$GETTEXT_PACKAGE", [Gettext package])