Remove a number of unnecessary stdio.h includes.

Change-Id: I6267c9bfb66940d0b6fe5368514210a058ebd3cc
Reviewed-on: https://boringssl-review.googlesource.com/7494
Reviewed-by: Emily Stark (Dunn) <estark@google.com>
Reviewed-by: David Benjamin <davidben@google.com>
diff --git a/crypto/cpu-intel.c b/crypto/cpu-intel.c
index 6614f63..e717e1f 100644
--- a/crypto/cpu-intel.c
+++ b/crypto/cpu-intel.c
@@ -64,8 +64,8 @@
 #if !defined(OPENSSL_NO_ASM) && (defined(OPENSSL_X86) || defined(OPENSSL_X86_64))
 
 #include <inttypes.h>
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 
 #if defined(OPENSSL_WINDOWS)