Reverted unrelated ZAS modification and unnecessary check.

code/ZAS/Zone.dm

@@ -108,7 +108,6 @@ Class Procs:
 
 /zone/proc/rebuild()
 	if(invalid) return //Short circuit for explosions where rebuild is called many times over.
-	if(air_master.current_cycle == 0) return //Why would you rebuild when you're building?
 	c_invalidate()
 	for(var/turf/simulated/T in contents)
 		//T.dbg(invalid_zone)

code/modules/power/lighting.dm

@@ -604,7 +604,7 @@
 #define LIGHTING_POWER_FACTOR 20		//20W per unit luminosity
 
 /obj/machinery/light/process()//TODO: remove/add this from machines to save on processing as needed ~Carn PRIORITY
-	if(on && light)
+	if(on)
 		use_power(luminosity * LIGHTING_POWER_FACTOR, LIGHT)
 
 // called when area power state changes