diff --git a/ctl/stk b/ctl/stk
deleted file mode 100644
index d02e3706..00000000
--- a/ctl/stk
+++ /dev/null
@@ -1,58 +0,0 @@
-typedef struct B
-{
-    T value[DEQ_BUCKET_SIZE];
-    int16_t a;
-    int16_t b;
-}
-B;
-
-typedef struct A
-{
-    void (*free)(T*);
-    T (*copy)(T*);
-    B** pages;
-    size_t mark_a;
-    size_t mark_b;
-    size_t capacity;
-    size_t size;
-}
-A;
-
-typedef struct I
-{
-    void (*step)(struct I*);
-    A* container;
-    T* ref;
-    size_t index;
-    size_t index_next;
-    size_t index_last;
-    int done;
-}
-I;
-
-static inline int
-JOIN(A, empty)(A* self)
-
-static inline void
-JOIN(A, push)(A* self, T value)
-
-static inline void
-JOIN(A, pop)(A* self)
-
-static inline A
-JOIN(A, init)(void)
-
-static inline T*
-JOIN(A, top)(A* self)
-
-static inline void
-JOIN(A, free)(A* self)
-
-static inline void
-JOIN(A, swap)(A* self, A* other)
-
-static inline A
-JOIN(A, copy)(A* self)
-
-static inline int
-JOIN(A, equal)(A* self, A* other, int _equal(T*, T*))