Cleans up drop_from_inventory overrides.

code/modules/mob/inventory.dm

@@ -149,10 +149,8 @@ var/global/list/slot_equipment_priority = list( \
 /mob/proc/drop_from_inventory(var/obj/item/W, var/atom/target)
 	if(W)
 		remove_from_mob(W, target)
-		if(!(W && W.loc))
-			return 1 // self destroying objects (tk, grabs)
-		return 1
-	return 0
+		return TRUE
+	return FALSE
 
 //Drops the item in our left hand
 /mob/proc/drop_l_hand(var/atom/Target)
@@ -222,8 +220,7 @@ var/global/list/slot_equipment_priority = list( \
 		else
 			I.dropInto(drop_location())
 		I.dropped(src)
-	return 1
-
+	return TRUE
 
 //Returns the item equipped to the specified slot, if any.
 /mob/proc/get_equipped_item(var/slot)

code/modules/mob/living/carbon/human/human.dm

@@ -1387,10 +1387,8 @@
 		to_chat(S, "<span class='danger'>[U] pops your [current_limb.joint] back in!</span>")
 	current_limb.relocate()
 
-/mob/living/carbon/human/drop_from_inventory(var/obj/item/W, var/atom/Target = null)
-	if(W in organs)
-		return
-	..()
+/mob/living/carbon/human/drop_from_inventory(var/obj/item/W, var/atom/target = null)
+	return !(W in organs) && ..()
 
 /mob/living/carbon/human/reset_view(atom/A, update_hud = 1)
 	..()

code/modules/mob/living/living.dm

@@ -714,10 +714,8 @@
 /mob/living/proc/slip(var/slipped_on,stun_duration=8)
 	return FALSE
 
-/mob/living/carbon/drop_from_inventory(var/obj/item/W, var/atom/Target = null)
-	if(W in internal_organs)
-		return
-	..()
+/mob/living/carbon/drop_from_inventory(var/obj/item/W, var/atom/target = null)
+	return !(W in internal_organs) && ..()
 
 /mob/living/touch_map_edge()
 

code/modules/mob/living/simple_mob/hands.dm

@@ -135,13 +135,6 @@
 		to_chat(src, "<span class='danger'>Your [hand_form] are not fit for use of \the [display_name].</span>")
 	return humanoid_hands
 
-/mob/living/simple_mob/drop_from_inventory(var/obj/item/W, var/atom/target = null)
-	. = ..(W, target)
-	if(!target)
-		target = src.loc
-	if(.)
-		W.forceMove(src.loc)
-
 /mob/living/simple_mob/is_holding_item_of_type(typepath)
 	for(var/obj/item/I in list(l_hand, r_hand))
 		if(istype(I, typepath))
@@ -153,4 +146,4 @@
 	if(l_hand)
 		. += l_hand
 	if(r_hand)
-		. += r_hand
+		. += r_hand