remove api that was scheduled for removal

patches/api/0148-PreSpawnerSpawnEvent.patch

@@ -0,0 +1,47 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Phoenix616 <mail@moep.tv>
+Date: Tue, 18 Sep 2018 23:50:10 +0100
+Subject: [PATCH] PreSpawnerSpawnEvent
+
+This adds a separate event before an entity is spawned by a spawner
+which contains the location of the spawner too similarly to how the
+SpawnerSpawnEvent gets called instead of the CreatureSpawnEvent for
+spawners.
+
+Dropped as it does not apply due to the earlier PreCreatureSpawnEvent patch not being applied
+
+diff --git a/src/main/java/com/destroystokyo/paper/event/entity/PreSpawnerSpawnEvent.java b/src/main/java/com/destroystokyo/paper/event/entity/PreSpawnerSpawnEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..2910f0bf929d918c86510f29d9361bbc19411256
+--- /dev/null
++++ b/src/main/java/com/destroystokyo/paper/event/entity/PreSpawnerSpawnEvent.java
+@@ -0,0 +1,29 @@
++package com.destroystokyo.paper.event.entity;
++
++import org.bukkit.Location;
++import org.bukkit.entity.EntityType;
++import org.bukkit.event.entity.CreatureSpawnEvent;
++import org.jetbrains.annotations.ApiStatus;
++import org.jetbrains.annotations.NotNull;
++
++/**
++ * Called before an entity is spawned into a world by a spawner.
++ * <p>
++ * This only includes the spawner's location and not the full BlockState snapshot for performance reasons.
++ * If you really need it you have to get the spawner yourself.
++ */
++public class PreSpawnerSpawnEvent extends PreCreatureSpawnEvent {
++
++    @NotNull private final Location spawnerLocation;
++
++    @ApiStatus.Internal
++    public PreSpawnerSpawnEvent(@NotNull Location location, @NotNull EntityType type, @NotNull Location spawnerLocation) {
++        super(location, type, CreatureSpawnEvent.SpawnReason.SPAWNER);
++        this.spawnerLocation = spawnerLocation;
++    }
++
++    @NotNull
++    public Location getSpawnerLocation() {
++        return this.spawnerLocation.clone();
++    }
++}