parse.y: Remove a code for old yacc
The current parse.y won't compile with yacc since it depends on many bison's extensions. Also, configure.ac does not have a check for yacc, so the macro OLD_YACC is no longer used.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by mame (Yusuke Endoh) almost 8 years ago
parse.y: Remove a code for old yacc
The current parse.y won't compile with yacc since it depends on many
bison's extensions. Also, configure.ac does not have a check for yacc,
so the macro OLD_YACC is no longer used.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61819 b2dd03c8-39d4-4d8f-98ff-823fe69b080e