fix entity#remove out of scheduled task

Author: xGinko

AnarchyExploitFixesFolia/src/main/java/me/xginko/aef/modules/chunklimits/CustomEntityLimit.java

@@ -187,8 +187,8 @@ private void enforceEntityLimit(Map<EntityType, List<Entity>> entitiesByTypes) {
             for (int i = entityLimit; i < entityCount; i++) {
                 int rem = removed++;
                 Entity entity = entry.getValue().get(i);
-                entity.remove();
                 entity.getScheduler().execute(plugin, () -> {
+                    entity.remove();
                     logger().info("Removed {} at {} ({}/{} limit={})",
                             entity.getType(),
                             LocationUtil.toString(entity.getLocation()),