Messaging: Remove unnecessary toString() and String.valueOf() calls

Change-Id: I5d5624386ba72b9e7074a7da909f78baaee73f75

src/com/android/messaging/ui/conversation/MessageDetailsDialog.java

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 The Android Open Source Project
+ * Copyright (C) 2024 The LineageOS Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -296,7 +297,7 @@ public class MessageDetailsDialog {
         if (recipients != null) {
             details.append('\n');
             details.append("Thread recipients: ");
-            details.append(recipients.toString());
+            details.append(recipients);
 
             if (mms != null) {
                 final String from = MmsUtils.getMmsSender(recipients, mms.getUri());