diff --git a/mobile/test/features/channels/channel_detail_page_test.dart b/mobile/test/features/channels/channel_detail_page_test.dart
index 5b375c84bd..50bacdb440 100644
--- a/mobile/test/features/channels/channel_detail_page_test.dart
+++ b/mobile/test/features/channels/channel_detail_page_test.dart
@@ -31,7 +31,6 @@ import 'package:flutter/rendering.dart'
         SemanticsNode;
 import 'package:flutter/services.dart';
 import 'package:flutter_test/flutter_test.dart';
-import 'package:leak_tracker/leak_tracker.dart';
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:http/http.dart' as http;
 import 'package:http/testing.dart' as http_testing;
@@ -100,7 +99,6 @@ part 'channel_detail_page_test/action_row_tests.dart';
 part 'channel_detail_page_test/bubble_tests.dart';
 part 'channel_detail_page_test/swipe_reply_tests.dart';
 part 'channel_detail_page_test/review_avatar_tests.dart';
-part 'channel_detail_page_test/retention_tests.dart';
 
 const _channelId = '11111111-2222-4333-8444-555555555555';
 const _huddleChannelId = '8d764100-fd8f-44cf-9c98-6d8fbd739b8c';
@@ -571,7 +569,6 @@ void main() {
   bubbleLayoutTests();
   swipeReplyTests();
   reviewAvatarTests();
-  channelRetentionTests();
   setUp(() async {
     SharedPreferences.setMockInitialValues({});
     _testPrefs = await SharedPreferences.getInstance();
diff --git a/mobile/test/features/channels/channel_detail_page_test/retention_tests.dart b/mobile/test/features/channels/channel_detail_page_test/retention_tests.dart
deleted file mode 100644
index b89eadbff1..0000000000
--- a/mobile/test/features/channels/channel_detail_page_test/retention_tests.dart
+++ /dev/null
@@ -1,69 +0,0 @@
-part of '../channel_detail_page_test.dart';
-
-void channelRetentionTests() {
-  testWidgets('departed channel composer and route are collectible', (
-    tester,
-  ) async {
-    final semantics = tester.ensureSemantics();
-    try {
-      await tester.pumpWidget(
-        _buildTestable(
-          messages: [
-            _textMsg(id: 'message', pubkey: 'alice', content: 'Hello'),
-          ],
-          home: Builder(
-            builder: (context) => Scaffold(
-              body: TextButton(
-                onPressed: () => Navigator.of(context).push(
-                  MaterialPageRoute<void>(
-                    builder: (_) => ChannelDetailPage(channel: _testChannel),
-                  ),
-                ),
-                child: const Text('Open channel'),
-              ),
-            ),
-          ),
-        ),
-      );
-      await tester.pumpAndSettle();
-
-      final retired = <WeakReference<Object>>[];
-      for (var visit = 0; visit < 3; visit++) {
-        retired.addAll(await _visitAndLeaveChannel(tester));
-      }
-      // Keep the same app, navigator and semantics owner alive during GC.
-      await tester.runAsync(() => forceGC(fullGcCycles: 3));
-      expect(
-        retired.where((reference) => reference.target != null),
-        isEmpty,
-        reason: 'Departed routes, composers and their portals must be released',
-      );
-    } finally {
-      semantics.dispose();
-    }
-  });
-}
-
-Future<List<WeakReference<Object>>> _visitAndLeaveChannel(
-  WidgetTester tester,
-) async {
-  await tester.tap(find.text('Open channel'));
-  await tester.pumpAndSettle();
-  expect(find.text('Message #general'), findsOneWidget);
-  final composer = find.byType(ComposeBar);
-  final portal = find.descendant(
-    of: composer,
-    matching: find.byType(OverlayPortal),
-  );
-  expect(portal, findsWidgets);
-  final retired = <WeakReference<Object>>[
-    for (final state in tester.stateList(portal)) WeakReference(state),
-    WeakReference(tester.element(composer)),
-    WeakReference(ModalRoute.of(tester.element(composer))!),
-  ];
-  Navigator.of(tester.element(composer)).pop();
-  await tester.pumpAndSettle();
-  expect(find.byType(ChannelDetailPage), findsNothing);
-  expect(find.text('Open channel'), findsOneWidget);
-  return retired;
-}