Remove drop_item, drop_item_v, put_in_hands_or_del

code/modules/library/lib_items.dm

@@ -84,9 +84,8 @@
 
 		if(2)
 			if(is_type_in_list(I, allowed_books))
-				if(!user.drop_item())
+				if(!user.transferItemToLoc(I, src))
 					return
-				I.loc = src
 				update_icon()
 			else if(istype(I, /obj/item/storage/bag/books))
 				var/obj/item/storage/bag/books/B = I

code/modules/library/lib_machines.dm

@@ -507,9 +507,8 @@ GLOBAL_LIST(cachedbooks) // List of our cached book datums
 
 /obj/machinery/libraryscanner/attackby(obj/O, mob/user, params)
 	if(istype(O, /obj/item/book))
-		if(!user.drop_item())
+		if(!user.transferItemToLoc(O, src))
 			return
-		O.loc = src
 	else
 		return ..()
 
@@ -576,9 +575,8 @@ GLOBAL_LIST(cachedbooks) // List of our cached book datums
 	if(busy)
 		to_chat(user, "<span class='warning'>The book binder is busy. Please wait for completion of previous operation.</span>")
 		return
-	if(!user.drop_item())
+	if(!user.transferItemToLoc(P, src))
 		return
-	P.loc = src
 	user.visible_message("[user] loads some paper into [src].", "You load some paper into [src].")
 	audible_message("[src] begins to hum as it warms up its printing drums.")
 	busy = TRUE