Revert "[MIRROR] Replace all secondary flags with bitflags stored in the flags_2 var" (#2457)

ok you know what yeah i think i'll properly mirror https://github.com/Citadel-Station-13/Citadel-Station-13/pull/2411

code/modules/holodeck/computer.dm

@@ -247,9 +247,9 @@
 	// this is an exercise left to others I'm afraid.  -Sayu
 	spawned = A.copy_contents_to(linked, 1, nerf_weapons = !emagged)
 	for(var/obj/machinery/M in spawned)
-		M.flags_1 |= NODECONSTRUCT_1
+		M.flags |= NODECONSTRUCT
 	for(var/obj/structure/S in spawned)
-		S.flags_1 |= NODECONSTRUCT_1
+		S.flags |= NODECONSTRUCT
 	effects = list()
 
 	addtimer(CALLBACK(src, .proc/finish_spawn), 30)
@@ -264,9 +264,9 @@
 			spawned += x // holocarp are not forever
 			added += x
 	for(var/obj/machinery/M in added)
-		M.flags_1 |= NODECONSTRUCT_1
+		M.flags |= NODECONSTRUCT
 	for(var/obj/structure/S in added)
-		S.flags_1 |= NODECONSTRUCT_1
+		S.flags |= NODECONSTRUCT
 
 /obj/machinery/computer/holodeck/proc/derez(obj/O, silent = TRUE, forced = FALSE)
 	// Emagging a machine creates an anomaly in the derez systems.