remove api that was scheduled for removal

patches/api/0168-PlayerDeathEvent-getItemsToKeep.patch

@@ -0,0 +1,55 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Mon, 11 Mar 2013 20:04:34 -0400
+Subject: [PATCH] PlayerDeathEvent#getItemsToKeep
+
+Exposes a mutable array on items a player should keep on death
+
+Example Usage: https://gist.github.com/aikar/5bb202de6057a051a950ce1f29feb0b4
+
+diff --git a/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java b/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
+index 76f00e386110f361549690d20dc0f73884a2fdda..edf14dac359e996f76e0af551a81a4dd8e48bd6c 100644
+--- a/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
++++ b/src/main/java/org/bukkit/event/entity/PlayerDeathEvent.java
+@@ -57,6 +57,41 @@ public class PlayerDeathEvent extends EntityDeathEvent {
+         this.deathMessage = net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserializeOrNull(deathMessage); // Paper
+     }
+ 
++    @Deprecated // Paper
++    // Paper start
++    private List<ItemStack> itemsToKeep = new java.util.ArrayList<>();
++
++    /**
++     * A mutable collection to add items that the player should retain in their inventory on death (Similar to KeepInventory game rule)
++     *
++     * You <b>MUST</b> remove the item from the .getDrops() collection too or it will duplicate!
++     * <pre>{@code
++     *    {@literal @EventHandler(ignoreCancelled = true)}
++     *     public void onPlayerDeath(PlayerDeathEvent event) {
++     *         for (Iterator<ItemStack> iterator = event.getDrops().iterator(); iterator.hasNext(); ) {
++     *             ItemStack drop = iterator.next();
++     *             List<String> lore = drop.getLore();
++     *             if (lore != null && !lore.isEmpty()) {
++     *                 if (lore.get(0).contains("(SOULBOUND)")) {
++     *                     iterator.remove();
++     *                     event.getItemsToKeep().add(drop);
++     *                 }
++     *             }
++     *         }
++     *     }
++     * }</pre>
++     *
++     * Adding an item to this list that the player did not previously have will give them the item on death.
++     * An example case could be a "Note" that "You died at X/Y/Z coordinates"
++     *
++     * @return The list to hold items to keep
++     */
++    @NotNull
++    public List<ItemStack> getItemsToKeep() {
++        return itemsToKeep;
++    }
++    // Paper end
++
+     @NotNull
+     @Override
+     public Player getEntity() {