Revert "Added support for emulate_booleans as documented at http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/MysqlAdapter.html#method-c-emulate_booleans."
Revert "Added support for emulate_booleans as documented at http://api.rubyonrails.org/classes/ActiveRecord/ConnectionAdapters/MysqlAdapter.html#method-c-emulate_booleans."

This reverts commit d7fa00f881fea6a75062dcdefa35daaeb4fd612b.

kares/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter,kares/activerecord-jdbc-adapter,kares/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter,jruby/activerecord-jdbc-adapter,keeguon/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter,keeguon/activerecord-jdbc-adapter,keeguon/activerecord-jdbc-adapter,bruceadams/activerecord-jdbc-adapter