comment out definitions of unused variables
Merge pull request #126 from TaiSakuma/tai_20140930_01

Right, this was fixed in 42d67bacae9d8e404f6fa8804cadeacdc4ec5535 but then accidentally reverted by in 59cd3a90d4faef40b557dc569f9f8855615a076b as part of #107 
Thanks