diff --git a/3-mid/physics/implement/box2d/source/c/box2d.h b/3-mid/physics/implement/box2d/source/c/box2d.h
deleted file mode 100644
index 9b79344..0000000
--- a/3-mid/physics/implement/box2d/source/c/box2d.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef C_BOX2D_H
-#define C_BOX2D_H
-
-#include "c_math.h"
-
-// Provides a simple C interface to the Box2D C++ library.
-
-#endif