* bignum.c (big2ulong): "check" argument removed.
  (rb_big2ulong): Follow above change.
  (rb_big2long): Ditto.
  (rb_big_rshift): Ditto.
  (rb_big_aref): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41622 b2dd03c8-39d4-4d8f-98ff-823fe69b080e