remove arg_setup_lambda.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
remove arg_setup_lambda.
same as arg_setup_method.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59014 b2dd03c8-39d4-4d8f-98ff-823fe69b080e