* bignum.c (integer_unpack_num_bdigits_generic): Rewritten without
  rb_funcall.
  (integer_unpack_num_bdigits_bytes): Removed.
  (rb_integer_unpack): integer_unpack_num_bdigits_bytes invocation
  removed.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41258 b2dd03c8-39d4-4d8f-98ff-823fe69b080e