fix: Avoid potential slow Set#removeAll call in HierarchicalCommunica…

…tionController#passivateInactiveKeys

The performance of calling Set#removeAll(List) is dependent on the relative sizes of the Set and List parameter. Replace Set#removeAll with List#forEach(Set::remove) to avoid this.

Fixes vaadin#13745

flow-data/src/main/java/com/vaadin/flow/data/provider/hierarchy/HierarchicalCommunicationController.java

@@ -287,7 +287,7 @@ private void passivateInactiveKeys(Set<String> oldActive,
             }
 
             // Finally clear any passivated items that have now been confirmed
-            oldActive.removeAll(newActiveKeyOrder);
+            newActiveKeyOrder.forEach(oldActive::remove);
             if (!oldActive.isEmpty()) {
                 passivatedByUpdate.put(Integer.valueOf(updateId), oldActive);
             }