Code cleanup. A line in weather.cs at line #174 under UpdateWeatherParameters() was marked as not needed, but not removed. The removal of this line helped in eliminating a precipitation glitch that would take place at the start of the activity.
git-svn-id: http://svn.uktrainsim.com/svn/openrails/trunk@4158 a9f3cfff-6c41-7446-b0ca-052bd761e6eb