diff --git a/common/_os_bits.h b/common/_os_bits.h
deleted file mode 100644
index 81e1626..0000000
--- a/common/_os_bits.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _OS_BITS_H
-#define _OS_BITS_H
-
-#define OS_BITS  64
-#define OFF_BITS 64
-
-#endif