Kill constants.h and fix some copyright headers.

Change-Id: I51c04d731d6de035328781d8ac134ad6fcf49897
diff --git a/src/disassembler_x86.cc b/src/disassembler_x86.cc
index 08025ea..4c8c09a 100644
--- a/src/disassembler_x86.cc
+++ b/src/disassembler_x86.cc
@@ -16,11 +16,11 @@
 
 #include "disassembler_x86.h"
 
-#include "stringprintf.h"
-
-#include <stdint.h>
 #include <iostream>
 
+#include "logging.h"
+#include "stringprintf.h"
+
 namespace art {
 namespace x86 {