Updated Upstream (CraftBukkit) (#4760)

Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

CraftBukkit Changes:
23618b2c SPIGOT-6240: Use correct portal search radius

Spigot-Server-Patches/0051-Add-configurable-portal-search-radius.patch

@@ -33,19 +33,6 @@ index 52595b6534e2798b36b3a7c2d97451bd0ea2f3a0..716ea2fced5dc9e9a790f25e68252d5b
                  if (event == null) {
                      return null;
                  }
-diff --git a/src/main/java/net/minecraft/server/EntityPlayer.java b/src/main/java/net/minecraft/server/EntityPlayer.java
-index aed80f8a4a39d677ee0ea82f8795c5c8fdedcd6c..553b2729a3a50a35e68602da451fbd69a9dfbe9b 100644
---- a/src/main/java/net/minecraft/server/EntityPlayer.java
-+++ b/src/main/java/net/minecraft/server/EntityPlayer.java
-@@ -875,7 +875,7 @@ public class EntityPlayer extends EntityHuman implements ICrafting {
-     protected CraftPortalEvent callPortalEvent(Entity entity, WorldServer exitWorldServer, BlockPosition exitPosition, TeleportCause cause, int searchRadius, int creationRadius) {
-         Location enter = this.getBukkitEntity().getLocation();
-         Location exit = new Location(exitWorldServer.getWorld(), exitPosition.getX(), exitPosition.getY(), exitPosition.getZ(), yaw, pitch);
--        PlayerPortalEvent event = new PlayerPortalEvent(this.getBukkitEntity(), enter, exit, cause, 128, true, creationRadius);
-+        PlayerPortalEvent event = new PlayerPortalEvent(this.getBukkitEntity(), enter, exit, cause, searchRadius, true, creationRadius); // Paper - use searchRadius
-         Bukkit.getServer().getPluginManager().callEvent(event);
-         if (event.isCancelled() || event.getTo() == null || event.getTo().getWorld() == null) {
-             return null;
 diff --git a/src/main/java/net/minecraft/server/PortalTravelAgent.java b/src/main/java/net/minecraft/server/PortalTravelAgent.java
 index 150c688262e79b3b675685dbd1754b9e01cb4d75..e10995ec30dd9a10d781b3c1709fd2db5a9becdd 100644
 --- a/src/main/java/net/minecraft/server/PortalTravelAgent.java

work/CraftBukkit

@@ -1 +1 @@
-Subproject commit 009f0ba0efc92da460667c30a15d2120eeb74909
+Subproject commit 23618b2cb56759e176e5c7796f945782cd065bc6