Remove "Implement-Chunk-Priority-Urgency-System-for-Chunks" (Fixes #5980)

Mojang made some changes to priorities in 1.17 and it seems that these changes
conflict with the changes made in this patch, which in some cases appears to
cause excessive rescheduling of tasks.

This, however, is not confirmed as such but seems to be the behavior that we're
seeing to cause this issue, if mojang has adopted the changes we suggested,
then a good chunk of this patch may be unneeded, but, this needs a much better
look than I'm currently able to do

patches/server/Fix-Entity-Teleportation-and-cancel-velocity-if-tele.patch

@@ -22,14 +22,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
              this.lastGoodY = this.awaitingPositionFromClient.y;
              this.lastGoodZ = this.awaitingPositionFromClient.z;
 @@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
-         // CraftBukkit end
  
          this.awaitingTeleportTime = this.tickCount;
--        this.player.absMoveTo(d0, d1, d2, f, f1);
+         this.player.absMoveTo(d0, d1, d2, f, f1);
 +        this.player.moveTo(d0, d1, d2, f, f1); // Paper - use proper setPositionRotation for teleportation
-         this.player.forceCheckHighPriority(); // Paper
          this.player.connection.send(new ClientboundPlayerPositionPacket(d0 - d3, d1 - d4, d2 - d5, f - f2, f1 - f3, set, this.awaitingTeleport, flag));
      }
+ 
 diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
 index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
 --- a/src/main/java/net/minecraft/world/entity/Entity.java