Remove rb_hash_st_table

It's a duplicate of RHASH_ST_TABLE.

1 files changed, 0 insertions, 1 deletions

diff --git a/internal/hash.h b/internal/hash.h
index 1c9e4e170a..5545ecb855 100644
--- a/internal/hash.h
+++ b/internal/hash.h
@@ -82,7 +82,6 @@ VALUE rb_hash_set_pair(VALUE hash, VALUE pair);
 int rb_hash_stlike_delete(VALUE hash, st_data_t *pkey, st_data_t *pval);
 int rb_hash_stlike_foreach_with_replace(VALUE hash, st_foreach_check_callback_func *func, st_update_callback_func *replace, st_data_t arg);
 int rb_hash_stlike_update(VALUE hash, st_data_t key, st_update_callback_func *func, st_data_t arg);
-extern st_table *rb_hash_st_table(VALUE hash);
 VALUE rb_ident_hash_new_with_size(st_index_t size);
 
 static inline unsigned RHASH_AR_TABLE_SIZE_RAW(VALUE h);