Fixes issues with stool grabbing.

Stool children no longer can be taken in hand like papa stool.
Hate this class structure.

code/game/objects/structures/stool_bed_chair_nest/bed.dm

@@ -30,6 +30,9 @@
 	manual_unbuckle(user)
 	return
 
+/obj/structure/stool/bed/MouseDrop(atom/over_object)
+	return
+
 /obj/structure/stool/bed/MouseDrop_T(mob/M as mob, mob/user as mob)
 	if(!istype(M)) return
 	buckle_mob(M, user)
@@ -151,4 +154,4 @@
 		new/obj/item/roller(get_turf(src))
 		spawn(0)
 			del(src)
-		return
+		return

code/game/objects/structures/stool_bed_chair_nest/chairs.dm

@@ -3,9 +3,6 @@
 	desc = "You sit in this. Either by will or force."
 	icon_state = "chair"
 
-/obj/structure/stool/MouseDrop(atom/over_object)
-	return
-
 /obj/structure/stool/bed/chair/New()
 	if(anchored)
 		src.verbs -= /atom/movable/verb/pull