move macro to internal.h for documentation.

13e84d5c0a changes enum to macro, but the flags usage information
are lost in internal.h. It should be same place with other flags
information.

1 files changed, 0 insertions, 1 deletions

diff --git a/hash.c b/hash.c
index b0e9b027fd..53fe79bfc0 100644
--- a/hash.c
+++ b/hash.c
@@ -1317,7 +1317,6 @@ iter_lev_in_ivar_set(VALUE hash, int lev)
     rb_ivar_set_internal(hash, rb_intern("hash_iter_lev"), INT2FIX(lev));
 }
 
-#define RHASH_LEV_MASK ((VALUE)RHASH_LEV_MAX << RHASH_LEV_SHIFT)
 static int
 iter_lev_in_flags(VALUE hash)
 {