Remove CONFIG_USE_STDINT

You do not need to use the typedefs provided by compiler.

Our compilers are either IPL32 or LP64.  Hence, U-Boot can/should
always use int-ll64.h typedefs like Linux kernel, whatever the
typedefs the compiler internally uses.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/tools/buildman/func_test.py b/tools/buildman/func_test.py
index 363db9d..119d02c 100644
--- a/tools/buildman/func_test.py
+++ b/tools/buildman/func_test.py
@@ -27,7 +27,7 @@
 [make-flags]
 src=/home/sjg/c/src
 chroot=/home/sjg/c/chroot
-vboot=USE_STDINT=1 VBOOT_DEBUG=1 MAKEFLAGS_VBOOT=DEBUG=1 CFLAGS_EXTRA_VBOOT=-DUNROLL_LOOPS VBOOT_SOURCE=${src}/platform/vboot_reference
+vboot=VBOOT_DEBUG=1 MAKEFLAGS_VBOOT=DEBUG=1 CFLAGS_EXTRA_VBOOT=-DUNROLL_LOOPS VBOOT_SOURCE=${src}/platform/vboot_reference
 chromeos_coreboot=VBOOT=${chroot}/build/link/usr ${vboot}
 chromeos_daisy=VBOOT=${chroot}/build/daisy/usr ${vboot}
 chromeos_peach=VBOOT=${chroot}/build/peach_pit/usr ${vboot}