Fixes RD console circuit var not set.

Also removes redundant attackby code, and small change to text when
setting access protocol on the board.

Related to issue #5006

code/modules/research/rdconsole.dm

@@ -34,6 +34,7 @@ won't update every console in existence) but it's more of a hassle to do. Also,
 /obj/machinery/computer/rdconsole
 	name = "R&D Console"
 	icon_state = "rdcomp"
+	circuit = /obj/item/weapon/circuitboard/rdconsole
 	var/datum/research/files							//Stores all the collected research data.
 	var/obj/item/weapon/disk/tech_disk/t_disk = null	//Stores the technology disk.
 	var/obj/item/weapon/disk/design_disk/d_disk = null	//Stores the design disk.
@@ -141,35 +142,8 @@ won't update every console in existence) but it's more of a hassle to do. Also,
 */
 
 /obj/machinery/computer/rdconsole/attackby(var/obj/item/weapon/D as obj, var/mob/user as mob)
-	//The construction/deconstruction of the console code.
-	if(istype(D, /obj/item/weapon/screwdriver))
-		playsound(src.loc, 'sound/items/Screwdriver.ogg', 50, 1)
-		if(do_after(user, 20))
-			if (src.stat & BROKEN)
-				user << "\blue The broken glass falls out."
-				var/obj/structure/computerframe/A = new /obj/structure/computerframe( src.loc )
-				new /obj/item/weapon/shard( src.loc )
-				var/obj/item/weapon/circuitboard/rdconsole/M = new /obj/item/weapon/circuitboard/rdconsole( A )
-				for (var/obj/C in src)
-					C.loc = src.loc
-				A.circuit = M
-				A.state = 3
-				A.icon_state = "3"
-				A.anchored = 1
-				del(src)
-			else
-				user << "\blue You disconnect the monitor."
-				var/obj/structure/computerframe/A = new /obj/structure/computerframe( src.loc )
-				var/obj/item/weapon/circuitboard/rdconsole/M = new /obj/item/weapon/circuitboard/rdconsole( A )
-				for (var/obj/C in src)
-					C.loc = src.loc
-				A.circuit = M
-				A.state = 4
-				A.icon_state = "4"
-				A.anchored = 1
-				del(src)
 	//Loading a disk into it.
-	else if(istype(D, /obj/item/weapon/disk))
+	if(istype(D, /obj/item/weapon/disk))
 		if(t_disk || d_disk)
 			user << "A disk is already loaded into the machine."
 			return
@@ -186,6 +160,10 @@ won't update every console in existence) but it's more of a hassle to do. Also,
 		playsound(src.loc, 'sound/effects/sparks4.ogg', 75, 1)
 		emagged = 1
 		user << "\blue You you disable the security protocols"
+	else
+		//The construction/deconstruction of the console code.
+		..()
+	
 	src.updateUsrDialog()
 	return