Traffic density and speedlimits-Update [1.27.x]

Removed "spawn_daytime_rates", and some other parameters.

Removed "spawn_daytime_rates" give dense traffic at night on motorway, 

but on local road traffic is rare at night. (like by wegger request  )

Left only 1 police car at once

It looks like it is last traffic mod, because SCS did all right, and this mods not needed anymore  

And now we have many traffic moders.