Remove unused variable and extra spaces

I started reading this program today (a coworker who went to EDM in London showed it to me) and noticed some extra spaces that my editor removed due to a macro.

Another change I did was to remove the `line` declaration in `predicthmm.cpp:47`, which was making GCC give a warning. I'm pretty sure the other warnings can be eliminated as well, but my C++ is a bit rusty. :)