Remove unused defines, done TODO

src/vector.h

@@ -28,24 +28,6 @@
 		        __LINE__,                                                          \
 		        __VA_ARGS__);                                                      \
 	}
-#define foreach(item, vector)                                                  \
-	for (int keep  = 1,                                                          \
-	         count = 0,                                                          \
-	         size  = sizeof(vector->elements) / sizeof vector->elements;         \
-	     keep && count != size;                                                  \
-	     keep = !keep, count++)                                                  \
-		for (item =                                                                \
-		       (void *)((char *)(vector->elements) + (count * sizeof(void *)));    \
-		     keep;                                                                 \
-		     keep = !keep)
-
-#ifndef ARRAY_SIZE
-#	define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-#endif
-
-// TODO
-// `sizeof()' does NOT work with dynamically allocated memory. Vector capacity
-// must be tracked manually
 
 /* Destructor typedef */
 typedef void (*Destructor)(void *element);