Remove duplicated unit tests

[Edward J. Yoon]

Hi all,

By ChiaHung's great patch (HAMA-376), now the 'TestSerializePrinting'
has become unnecessary.

Should we remove 'TestSerializePrinting'?

-- 
Best Regards, Edward J. Yoon
http://blog.udanax.org
http://twitter.com/eddieyoon