Skip flaky tests in web.shared (#85577)

packages/flutter_tools/test/web.shard/hot_reload_web_test.dart

@@ -5,7 +5,6 @@
 // @dart = 2.8
 
 import 'dart:async';
-import 'dart:io';
 
 import 'package:file/file.dart';
 
@@ -52,7 +51,7 @@ void main() {
     } finally {
       await subscription.cancel();
     }
-  });
+  }, skip: true); // Skippping for https://github.com/flutter/flutter/issues/85575.
 
   testWithoutContext('newly added code executes during hot restart - canvaskit', () async {
     final Completer<void> completer = Completer<void>();
@@ -71,5 +70,6 @@ void main() {
     } finally {
       await subscription.cancel();
     }
-  }, skip: Platform.isWindows); // Skipping for https://github.com/flutter/flutter/issues/85043
+  }, skip: true); // Skipping for https://github.com/flutter/flutter/issues/85575
+                  // and https://github.com/flutter/flutter/issues/85043.
 }