Readd network optimization patch

patches/server/0560-Add-Block-isValidTool.patch

@@ -1,20 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Jake Potrebic <jake.m.potrebic@gmail.com>
-Date: Mon, 6 Jul 2020 12:44:31 -0700
-Subject: [PATCH] Add Block#isValidTool
-
-
-diff --git a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
-index 5e0f16acbd892f815cc504e03cd186070598b530..7dcc1fa9c058adf2d55b1ccc6f7abf468752e116 100644
---- a/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
-+++ b/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
-@@ -718,5 +718,9 @@ public class CraftBlock implements Block {
-     public String translationKey() {
-         return this.getNMS().getBlock().getDescriptionId();
-     }
-+
-+    public boolean isValidTool(ItemStack itemStack) {
-+        return getDrops(itemStack).size() != 0;
-+    }
-     // Paper end
- }