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/0181-getPlayerUniqueId-API.patch

@@ -1,40 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Aikar <aikar@aikar.co>
-Date: Thu, 22 Mar 2018 01:40:24 -0400
-Subject: [PATCH] getPlayerUniqueId API
-
-Gets the unique ID of the player currently known as the specified player name
-In Offline Mode, will return an Offline UUID
-
-This is a more performant way to obtain a UUID for a name than loading an OfflinePlayer
-
-diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index a9731e89f2cddc2ae256bf955945f4d2f3cd0c28..53834d226cf577413d1514c54f5a4b0294a432e7 100644
---- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -1704,6 +1704,25 @@ public final class CraftServer implements Server {
-         return recipients.size();
-     }
- 
-+    // Paper start
-+    @Nullable
-+    public UUID getPlayerUniqueId(String name) {
-+        Player player = Bukkit.getPlayerExact(name);
-+        if (player != null) {
-+            return player.getUniqueId();
-+        }
-+        GameProfile profile;
-+        // Only fetch an online UUID in online mode
-+        if (io.papermc.paper.configuration.GlobalConfiguration.get().proxies.isProxyOnlineMode()) {
-+            profile = console.getProfileCache().get(name).orElse(null);
-+        } else {
-+            // Make an OfflinePlayer using an offline mode UUID since the name has no profile
-+            profile = new GameProfile(UUID.nameUUIDFromBytes(("OfflinePlayer:" + name).getBytes(Charsets.UTF_8)), name);
-+        }
-+        return profile != null ? profile.getId() : null;
-+    }
-+    // Paper end
-+
-     @Override
-     @Deprecated
-     public OfflinePlayer getOfflinePlayer(String name) {