remove needless headers

src/util/macro.h

@@ -1,6 +0,0 @@
-#pragma once
-#define MACRO_WIDTH(t)   (sizeof(t) * 8) // gets the bit width of a type
-#define MACRO_CAT(x, y)  x##y            // concatenate two macro variables together
-#define MACRO_CAT2(x, y) MACRO_CAT(x, y) // concatenate two macro variables together
-#define MACRO_STR(v)     #v              // for converting macro variable into a string
-#define MACRO_STR2(v)    MACRO_STR(v)    // for a recursive string generation

src/util/vec.h

@@ -1,8 +0,0 @@
-#pragma once
-
-#include "types.h"
-
-#define VX 0
-#define VY 1
-
-typedef i8 i8vec2 __attribute__((vector_size(2)));