Remove force shutdown code

Let's see if this is necessary anymore.

src/main/java/pw/kaboom/extras/Main.java

@@ -108,14 +108,4 @@ public final class Main extends JavaPlugin {
 			new WorldCreator("world_flatlands").generateStructures(false).type(WorldType.FLAT)
 		);
 	}
-
-	@Override
-	public void onDisable() {
-		if (Bukkit.isStopping()) {
-			/* This should never be done in a critical environment, as it can lead to data corruption.
-				We are not too concerned with data corruption, as the server resets daily. In our case, it's
-				more important to ensure that the server never hangs. */
-			Runtime.getRuntime().halt(0);
-		}
-	}
 }