[vte] Do not use deprecated AM_PROG_CC_STDC

[Jesse van den Kieboom <jessevdk src gnome org>]

commit 4f7526f2241ec01ceea5a93cd9d3dd3106e7f5e5
Author: Jesse van den Kieboom <jessevdk gmail com>
Date:   Sat Sep 6 08:46:53 2014 +0200

    Do not use deprecated AM_PROG_CC_STDC
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736180

 gnome-pty-helper/configure.ac |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/gnome-pty-helper/configure.ac b/gnome-pty-helper/configure.ac
index 355a858..c9f0aa4 100644
--- a/gnome-pty-helper/configure.ac
+++ b/gnome-pty-helper/configure.ac
@@ -10,7 +10,6 @@ AC_USE_SYSTEM_EXTENSIONS
 AC_ISC_POSIX
 AC_PROG_CC
 AC_STDC_HEADERS
-AM_PROG_CC_STDC
 
 AM_MAINTAINER_MODE([enable])