remove useless tests. nodeunitq does this automatically.

Hello @eford1, @kylehardgrave, 

Please review the following commits I made in branch 'nick-optional4'.

06a532b66a9cf8c3b3a346001a1319dcc922bd35 (2013-08-05 16:12:09 -0400)
remove useless tests. nodeunitq does this automatically.


R=@eford1
R=@kylehardgrave