naemon/workers.c: removed uneeded variable attribution

`i' is set to zero a few lines below

Signed-off-by: Ricardo Maraschini <ricardo.maraschini@gmail.com>
fixed pkill on debian wheezy (fixes #17) (snarf)

Signed-off-by: Sven Nierlein <sven@consol.de>
Merge pull request #19 from ricardomaraschini/patches

naemon/workers.c: removed uneeded variable attribution