Do not use worldgen executor for api profile completions

We cannot put blocking network I/O onto the worldgen threads,
this will crash the server if it stalls

patches/server/0667-add-per-world-spawn-limits.patch

@@ -1,25 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: chase <chasewhip20@gmail.com>
-Date: Wed, 2 Dec 2020 22:43:39 -0800
-Subject: [PATCH] add per world spawn limits
-
-Taken from #2982. Credit to Chasewhip8
-
-diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-index b6c43ae3703a302aa82cc0bc7f99a1502d2fd822..acd935f7b9652ae4e778d865e9be1f0bfe906fe0 100644
---- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
-@@ -205,6 +205,13 @@ public class CraftWorld extends CraftRegionAccessor implements World {
-         this.biomeProvider = biomeProvider;
- 
-         this.environment = env;
-+        // Paper start - per world spawn limits
-+        for (SpawnCategory spawnCategory : SpawnCategory.values()) {
-+            if (CraftSpawnCategory.isValidForLimits(spawnCategory)) {
-+                setSpawnLimit(spawnCategory, this.world.paperConfig().entities.spawning.spawnLimits.getInt(CraftSpawnCategory.toNMS(spawnCategory)));
-+            }
-+        }
-+        // Paper end
-     }
- 
-     @Override