Remove reference to removed test for multithreading.
Remove reference to removed test for multithreading.

nanoscopic/HTML-Bare,nanoscopic/perl-HTML-Bare,nanoscopic/perl-HTML-Bare,nanoscopic/perl-HTML-Bare,nanoscopic/HTML-Bare,nanoscopic/HTML-Bare,nanoscopic/perl-HTML-Bare,nanoscopic/HTML-Bare