remove the wikitoolbar_for
remove the wikitoolbar_for

There was an error on newer versions of Ruby and this
toolbar has never really been great anyway, so I just
removed it. If anyone wants to add a helpful toolbar
back in, feel free to send a pull request.

jthomerson/redmine_trac_formatter_plugin,jthomerson/redmine_trac_formatter_plugin,jthomerson/redmine_trac_formatter_plugin