Revert "Improved filtering of online accounts data."

This reverts commit c14fca5660.

src/main/java/org/qortal/controller/OnlineAccountsManager.java

@@ -743,14 +743,8 @@ public class OnlineAccountsManager {
         if (onlineAccounts == null)
             onlineAccounts = this.latestBlocksOnlineAccounts.get(timestamp);
 
-        if (onlineAccounts != null) {
-            // Remove accounts with matching timestamp, nonce, and public key
-            final Set<OnlineAccountData> finalOnlineAccounts = onlineAccounts;
-            blocksOnlineAccounts.removeIf(a1 -> finalOnlineAccounts.stream()
-                    .anyMatch(a2 -> a2.getTimestamp() == a1.getTimestamp() &&
-                            Objects.equals(a2.getNonce(), a1.getNonce()) &&
-                            Arrays.equals(a2.getPublicKey(), a1.getPublicKey())));
-        }
+        if (onlineAccounts != null)
+            blocksOnlineAccounts.removeAll(onlineAccounts);
     }
 
     /**