Update vendored headers against ruby/ruby

Author: eightbitraptor

gc/gc.h

@@ -204,22 +204,6 @@ gc_ref_update_table_values_only(st_table *tbl)
     }
 }
 
-static int
-gc_mark_tbl_no_pin_i(st_data_t key, st_data_t value, st_data_t data)
-{
-    rb_gc_mark_movable((VALUE)value);
-
-    return ST_CONTINUE;
-}
-
-static int
-gc_mark_set_no_pin_i(st_data_t key, st_data_t value, st_data_t data)
-{
-    rb_gc_mark_movable((VALUE)key);
-
-    return ST_CONTINUE;
-}
-
 static int
 hash_foreach_replace(st_data_t key, st_data_t value, st_data_t argp, int error)
 {