Unwrap Event Exceptions

This was a useless exception wrapper that ends up making
stack traces harder to read as well as the JVM cutting off
the important parts

Nothing catches this exception, so its safe to just get rid
of it and let the REAL exception bubble down

Spigot-API-Patches/0151-Add-ItemStackRecipeChoice-Draft-API.patch

@@ -1,69 +0,0 @@
-From b40f077ca0c583d5bd25b14c8ecd7e3eed96b4be Mon Sep 17 00:00:00 2001
-From: Aikar <aikar@aikar.co>
-Date: Thu, 13 Sep 2018 21:39:26 -0400
-Subject: [PATCH] Add ItemStackRecipeChoice Draft API
-
-This is based on Spigots Draft API. This is subject to change
-
-Allows creating recipes that must match isSimilar to full item stack.
-
-diff --git a/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java b/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java
-new file mode 100644
-index 00000000..43e6576b
---- /dev/null
-+++ b/src/main/java/com/destroystokyo/paper/inventory/ItemStackRecipeChoice.java
-@@ -0,0 +1,51 @@
-+package com.destroystokyo.paper.inventory;
-+
-+import org.bukkit.inventory.ItemStack;
-+import org.bukkit.inventory.RecipeChoice;
-+
-+import java.util.ArrayList;
-+import java.util.List;
-+
-+/**
-+ * Allows crafting Items that require full matching itemstacks to complete the recipe for custom items
-+ * @deprecated Draft API
-+ */
-+@Deprecated
-+public class ItemStackRecipeChoice implements RecipeChoice {
-+
-+    protected final List<ItemStack> choices = new ArrayList<>();
-+
-+    public ItemStackRecipeChoice(ItemStack choices) {
-+        this.choices.add(choices);
-+    }
-+
-+    public ItemStackRecipeChoice(List<ItemStack> choices) {
-+        this.choices.addAll(choices);
-+    }
-+
-+    @Override
-+    public ItemStack getItemStack() {
-+        return choices.isEmpty() ? null : choices.get(0);
-+    }
-+
-+    @Override
-+    public RecipeChoice clone() {
-+        try {
-+            ItemStackRecipeChoice clone = (ItemStackRecipeChoice) super.clone();
-+            clone.choices.addAll(this.choices);
-+            return clone;
-+        } catch (CloneNotSupportedException ex) {
-+            throw new AssertionError(ex);
-+        }
-+    }
-+
-+    @Override
-+    public boolean test(ItemStack itemStack) {
-+        for (ItemStack stack : choices) {
-+            if (stack.isSimilar(itemStack)) {
-+                return true;
-+            }
-+        }
-+        return false;
-+    }
-+}
--- 
-2.20.1
-