Tommi 301e546a68 Remove SequenceCheckerImpl::valid_system_queue_
As pointed out in issue webrtc:15146 this Mac/iOS specific variable,
makes the SequenceChecker behave incorrectly on those platforms.

The variable was introduced in a CL that merged the previous checker
classes, ThreadChecker and SequencedTaskChecker, but curiously neither
one of them had such a variable. So I'm not exactly sure what problem
was being solved. Hence I'm wondering if we actually need it.

Reference: https://webrtc-review.googlesource.com/c/src/+/129721

Bug: webrtc:15146
Change-Id: Ia7a9eb17b993c4f8a1e8204c658bf0b3dbdaa1e0
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/304401
Reviewed-by: Peter Hanspers <peterhanspers@webrtc.org>
Commit-Queue: Tomas Gunnarsson <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#40019}
2023-05-09 09:40:51 +00:00
..
2021-07-27 07:46:32 +00:00
2021-07-27 07:46:32 +00:00
2023-04-21 06:17:42 +00:00