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/surgery/organs/augments_arms.dm

@@ -82,7 +82,7 @@
 
 	holder = item
 
-	holder.flags_1 |= NODROP_1
+	holder.flags |= NODROP
 	holder.resistance_flags = INDESTRUCTIBLE | LAVA_PROOF | FIRE_PROOF | UNACIDABLE | ACID_PROOF
 	holder.slot_flags = null
 	holder.materials = null

code/modules/surgery/organs/augments_internal.dm

@@ -51,8 +51,8 @@
 	active = !active
 	if(active)
 		for(var/obj/item/I in owner.held_items)
-			if(!(I.flags_1 & NODROP_1))
-				flags_1 += I
+			if(!(I.flags & NODROP))
+				stored_items += I
 
 		var/list/L = owner.get_empty_held_indexes()
 		if(LAZYLEN(L) == owner.held_items.len)
@@ -62,7 +62,7 @@
 		else
 			for(var/obj/item/I in stored_items)
 				to_chat(owner, "<span class='notice'>Your [owner.get_held_index_name(owner.get_held_index_of_item(I))]'s grip tightens.</span>")
-				I.flags_1 |= NODROP_1
+				I.flags |= NODROP
 
 	else
 		release_items()
@@ -86,7 +86,7 @@
 
 /obj/item/organ/cyberimp/brain/anti_drop/proc/release_items()
 	for(var/obj/item/I in stored_items)
-		I.flags_1 &= ~NODROP_1
+		I.flags &= ~NODROP
 
 
 /obj/item/organ/cyberimp/brain/anti_drop/Remove(var/mob/living/carbon/M, special = 0)

code/modules/surgery/organs/ears.dm

@@ -25,7 +25,7 @@
 	if(C.disabilities & DEAF)
 		deaf = max(deaf, 1)
 	else
-		if(C.ears && (C.ears.flags_2 & HEALS_EARS_2))
+		if(C.ears && HAS_SECONDARY_FLAG(C.ears, HEALS_EARS))
 			deaf = max(deaf - 1, 1)
 			ear_damage = max(ear_damage - 0.10, 0)
 		// if higher than UNHEALING_EAR_DAMAGE, no natural healing occurs.