Remove "Auto fix bad Y levels on player login" patch

Fixes #6357
Closes #6508
Closes #6358

patches/server/0660-Added-PlayerDeepSleepEvent.patch

@@ -1,22 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Jake Potrebic <jake.m.potrebic@gmail.com>
-Date: Wed, 21 Apr 2021 15:58:19 -0700
-Subject: [PATCH] Added PlayerDeepSleepEvent
-
-
-diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
-index 3ea6ec6cd8a081fd427319bb01ea23e4670e8507..503c4e296d6f59c6480f6fb9ff5fed47b25d6102 100644
---- a/src/main/java/net/minecraft/world/entity/player/Player.java
-+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
-@@ -247,6 +247,11 @@ public abstract class Player extends LivingEntity {
- 
-         if (this.isSleeping()) {
-             ++this.sleepCounter;
-+            // Paper start
-+            if (this.sleepCounter == 100) {
-+                if (!new io.papermc.paper.event.player.PlayerDeepSleepEvent((org.bukkit.entity.Player) getBukkitEntity()).callEvent()) { this.sleepCounter = Integer.MIN_VALUE; }
-+            }
-+            // Paper end
-             if (this.sleepCounter > 100) {
-                 this.sleepCounter = 100;
-             }