remove api that was scheduled for removal

patches/server/0438-Add-LivingEntity-clearActiveItem.patch

@@ -0,0 +1,24 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Anrza <andrzejrzeczycki314@gmail.com>
+Date: Wed, 15 Jul 2020 12:08:49 +0200
+Subject: [PATCH] Add LivingEntity#clearActiveItem
+
+
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+index 344ef786330d1247fdfb56ef04be130c9ffb7d8f..69917c67228ccf51ebee8965e4fb8e58c9b7e8ec 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+@@ -936,6 +936,13 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+         return this.getHandle().getUseItem().asBukkitMirror();
+     }
+ 
++    // Paper start
++    @Override
++    public void clearActiveItem() {
++        getHandle().stopUsingItem();
++    }
++    // Paper end
++
+     @Override
+     public int getActiveItemRemainingTime() {
+         return this.getHandle().getUseItemRemainingTicks();