[giggle] configure.ac: Remove unnneded checks

[Javier Jardón <jjardon src gnome org>]

commit 4226f0c549acc34250801de05e83c566d696a3e9
Author: Javier Jardón <jjardon gnome org>
Date:   Mon Jul 29 14:16:47 2013 +0100

    configure.ac: Remove unnneded checks
    
    They are pretty standard and ee do not provide an alternative anyway

 configure.ac |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 996c3d4..0eb01d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,9 +31,6 @@ gl_INIT
 LT_PREREQ([2.2.6])
 LT_INIT([disable-static win32-dll])
 
-# Checks for header files.
-AC_CHECK_HEADERS([fcntl.h locale.h stdlib.h string.h unistd.h])
-
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_INLINE