Tweaked ticking of temp. entities in entity_set power type

* The power is now only sync'd after all the temp. entities that needs to be removed are removed

src/main/java/io/github/apace100/apoli/power/EntitySetPower.java

@@ -57,7 +57,7 @@ private void tickTempEntities() {
             Map.Entry<UUID, Integer> entry = entryIterator.next();
             entry.setValue(entry.getValue() - 1);
 
-            if (entry.getValue() <= 0 && this.remove(entry.getKey(), true, true)) {
+            if (entry.getValue() <= 0 && this.remove(entry.getKey(), true, false)) {
                 shouldSync = true;
             }