Increase timeout in test-only helper SendTask back to infinity

Some tests on some bots are really slow. Rely on infrastructure timeouts instead.

Bug: None
Change-Id: I8cc3a9c221f80debfb875631ea59f1bfb1d3f6c7
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/157170
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29502}
diff --git a/rtc_base/task_queue_for_test.h b/rtc_base/task_queue_for_test.h
index 40fc9c8a..cb44ee2 100644
--- a/rtc_base/task_queue_for_test.h
+++ b/rtc_base/task_queue_for_test.h
@@ -31,7 +31,8 @@
   rtc::Event event;
   task_queue->PostTask(
       ToQueuedTask(std::forward<Closure>(task), [&event] { event.Set(); }));
-  RTC_CHECK(event.Wait(/*give_up_after_ms=*/120'000, /*warn_after_ms=*/10'000))
+  RTC_CHECK(event.Wait(/*give_up_after_ms=*/rtc::Event::kForever,
+                       /*warn_after_ms=*/10'000))
       << "Waited too long at " << loc.ToString();
 }