Remove ruby2_keywords related to args forwarding

This was introduced by b609bdeb5307e280137b4b2838af0fe4e4b46f1c
to suppress warnings. However these warngins were deleted by
beae6cbf0fd8b6619e5212552de98022d4c4d4d4. Therefore these codes
are not needed anymore.

1 files changed, 0 insertions, 1 deletions

diff --git a/node.h b/node.h
index befb1328fb..885d55b7a1 100644
--- a/node.h
+++ b/node.h
@@ -462,7 +462,6 @@ struct rb_args_info {
 
     NODE *opt_args;
     unsigned int no_kwarg: 1;
-    unsigned int ruby2_keywords: 1;
     unsigned int forwarding: 1;
 
     VALUE imemo;