fixes weird drone health status

a non-damaged drone has 35 health and 35 maxHealth.
in the current proc, that is shown as (( 35 +35)/(35*2))*100 = 100 % health
a drone at half its health has 17.5 health.
current proc : (( 17.5 +35)/(35*2))*100 = 75 % health
a dead drone has 0 health.
current proc : ( 0 +35)/(35*2))*100 = 50 % health

as i fixed this proc in the silicon parent proc, this can be removed.

code/modules/mob/living/silicon/robot/drone/drone.dm

@@ -131,18 +131,6 @@
 				else if(M.stat == 2 &&  M.client.prefs.toggles & CHAT_GHOSTEARS)
 					if(M.client) M << "<b>[src]</b> transmits, \"[message]\""
 
-//Sick of trying to get this to display properly without redefining it.
-/mob/living/silicon/robot/drone/show_system_integrity()
-	if(!src.stat)
-		var/temphealth = health+35 //Brings it to 0.
-		if(temphealth<0)	temphealth = 0
-		//Convert to percentage.
-		temphealth = (temphealth / (maxHealth*2)) * 100
-
-		stat(null, text("System integrity: [temphealth]%"))
-	else
-		stat(null, text("Systems nonfunctional"))
-
 //Drones cannot be upgraded with borg modules so we need to catch some items before they get used in ..().
 /mob/living/silicon/robot/drone/attackby(obj/item/weapon/W as obj, mob/user as mob)