Remove duplicate cancel and send real isolateid to reloadsources

Author: srujzs

dwds/test/common/chrome_proxy_service_common.dart

@@ -2234,7 +2234,9 @@ void runTests({
 
     test('reloadSources', () async {
       final service = context.service;
-      final report = await service.reloadSources('');
+      final vm = await service.getVM();
+      final isolateId = vm.isolates!.first.id!;
+      final report = await service.reloadSources(isolateId);
       // TODO(srujzs): This naturally fails regardless of the module format
       // because we didn't set up prerequisite state (the reload scripts). We
       // should create new tests for hot reload within DWDS and remove this

dwds/test/hot_reload_breakpoints_test.dart

@@ -436,8 +436,6 @@ void main() {
       // Breakpoint should not be hit as it's now deleted. We should also see
       // the old string still as the closure has not been reevaluated.
       await callEvaluateAndExpectLog(oldCapturedString);
-
-      await consoleSubscription.cancel();
     });
   }, timeout: Timeout.factor(2));