@@ -28,39 +28,10 @@
 		void (*dispose_helper)(void *src);
 		const char *signature;
 	} *descriptor;
 } of_block_literal_t;
 
-typedef struct of_block_byref_t of_block_byref_t;
-struct of_block_byref_t {
-	Class isa;
-	of_block_byref_t *forwarding;
-	int flags;
-	int size;
-	void (*byref_keep)(void *dest, void *src);
-	void (*byref_dispose)(void*);
-};
-
-enum {
-	OF_BLOCK_HAS_COPY_DISPOSE = (1 << 25),
-	OF_BLOCK_HAS_CTOR	  = (1 << 26),
-	OF_BLOCK_IS_GLOBAL	  = (1 << 28),
-	OF_BLOCK_HAS_STRET	  = (1 << 29),
-	OF_BLOCK_HAS_SIGNATURE	  = (1 << 30),
-};
-#define OF_BLOCK_REFCOUNT_MASK \
-	~(OF_BLOCK_HAS_COPY_DISPOSE | OF_BLOCK_HAS_CTOR | OF_BLOCK_IS_GLOBAL | \
-	OF_BLOCK_HAS_STRET | OF_BLOCK_HAS_SIGNATURE)
-
-enum {
-	OF_BLOCK_FIELD_IS_OBJECT =   3,
-	OF_BLOCK_FIELD_IS_BLOCK	 =   7,
-	OF_BLOCK_FIELD_IS_BYREF	 =   8,
-	OF_BLOCK_FIELD_IS_WEAK	 =  16,
-	OF_BLOCK_BYREF_CALLER	 = 128,
-};
-
 #ifdef __cplusplus
 extern "C" {
 #endif
 extern void* _Block_copy(const void*);
 extern void _Block_release(const void*);