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/0105-ItemStack-getMaxItemUseDuration.patch

@@ -1,28 +0,0 @@
-From e45b4d932c1cf570cf43366467210ead1d75ef6c Mon Sep 17 00:00:00 2001
-From: Aikar <aikar@aikar.co>
-Date: Tue, 5 Jun 2018 22:59:50 -0400
-Subject: [PATCH] ItemStack#getMaxItemUseDuration
-
-Allows you to determine how long it takes to use a usable/consumable item
-
-diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
-index c3cb1247f..26ab1278b 100644
---- a/src/main/java/org/bukkit/inventory/ItemStack.java
-+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
-@@ -593,5 +593,13 @@ public class ItemStack implements Cloneable, ConfigurationSerializable {
-     public String getI18NDisplayName() {
-         return Bukkit.getServer().getItemFactory().getI18NDisplayName(this);
-     }
-+
-+    public int getMaxItemUseDuration() {
-+        if (type == null || type == Material.AIR || !type.isItem()) {
-+            return 0;
-+        }
-+        // Requires access to NMS
-+        return ensureServerConversions().getMaxItemUseDuration();
-+    }
-     // Paper end
- }
--- 
-2.18.0
-