config: remove unrequired AC_HEADER_STDC

Autoconf says:
"This macro is obsolescent, as current systems have conforming
header files. New programs need not use this macro".

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>

diff --git a/configure.ac b/configure.ac
index 18b9e7f..aa4be37 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -82,8 +82,6 @@ PKG_CHECK_EXISTS([xorg-server >= 1.7.0],
 
 # Checks for libraries.
 
-# Checks for header files.
-AC_HEADER_STDC
 save_CFLAGS="$CFLAGS"
 CFLAGS="$XORG_CFLAGS"
 AC_CHECK_DECL(XSERVER_LIBPCIACCESS,