Replaces uses of u_equip() with remove_from_mob() or drop_from_inventory(), where appropriate.

code/modules/reagents/reagent_containers/food/snacks.dm

@@ -165,9 +165,7 @@
 				return
 
 			user << "\red You slip [W] inside [src]."
-			user.u_equip(W)
-			if ((user.client && user.s_active != src))
-				user.client.screen -= W
+			user.remove_from_mob(W)
 			W.dropped(user)
 			add_fingerprint(user)
 			contents += W

code/modules/reagents/reagent_containers/syringes.dm

@@ -250,7 +250,7 @@
 			if (target != user && target.getarmor(target_zone, "melee") > 5 && prob(50))
 				for(var/mob/O in viewers(world.view, user))
 					O.show_message(text("\red <B>[user] tries to stab [target] in \the [hit_area] with [src.name], but the attack is deflected by armor!</B>"), 1)
-				user.u_equip(src)
+				user.remove_from_mob(src)
 				del(src)
 				return