This reverts commit a88fe7be146b9b85575504d4d5193c007f2e3de4. Reason for revert: Breaks downstream test, still investigating. Original change's description: > Fix race between destroying SctpTransport and receiving notification on timer thread. > > This gets rid of the SctpTransportMap::Retrieve method and forces > everything to go through PostToTransportThread, which behaves safely > with relation to the transport's destruction. > > Bug: webrtc:12467 > Change-Id: Id4a723c2c985be2a368d2cc5c5e62deb04c509ab > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/208800 > Reviewed-by: Niels Moller <nisse@webrtc.org> > Commit-Queue: Taylor <deadbeef@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#33364} TBR=nisse@webrtc.org Bug: webrtc:12467 Change-Id: Ib5d815a2cbca4feb25f360bff7ed62c02d1910a0 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/209820 Reviewed-by: Taylor <deadbeef@webrtc.org> Commit-Queue: Taylor <deadbeef@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33386}