remove unnecessary imemo stuff

Author: tenderlove

imemo.c

@@ -167,17 +167,6 @@ rb_imemo_memsize(VALUE obj)
  * mark
  * ========================================================================= */
 
-void
-rb_cc_list_mark(struct rb_class_cc_entries *ccs, VALUE data)
-{
-    for (int i=0; i<ccs->len; i++) {
-        VM_ASSERT((VALUE)data == ccs->entries[i].cc->klass);
-        VM_ASSERT(!ccs->cme || vm_cc_check_cme(ccs->entries[i].cc, ccs->cme));
-
-        rb_gc_mark_movable((VALUE)ccs->entries[i].cc);
-    }
-}
-
 static enum rb_id_table_iterator_result
 cc_table_mark_i(VALUE ccs_ptr, void *data)
 {

internal/imemo.h

@@ -147,8 +147,6 @@ static inline void MEMO_V2_SET(struct MEMO *m, VALUE v);
 
 size_t rb_imemo_memsize(VALUE obj);
 void rb_cc_table_mark(VALUE klass);
-struct rb_class_cc_entries;
-void rb_cc_list_mark(struct rb_class_cc_entries *ccs, VALUE data);
 void rb_imemo_mark_and_move(VALUE obj, bool reference_updating);
 void rb_cc_table_free(VALUE klass);
 void rb_imemo_free(VALUE obj);