Fixes duplicate check and general shitcode in human movement delay
Created by: 9600bauds
Holy shitcode Batman. I saw this and I had to fix it.
Removes duplicate "if(istype(loc, /turf/space)) return -1" check. Moves all the checks that can immediately return to the top, for obvious optimization Moves all the checks that multiply the tally to the bottom (zero multiplied by two IS STILL ZERO) Technically fixes slimepeople not being slowed down by Hyperzine I guess