This reverts commit a154a15c978a0eae133d957dcad3581fd5f98c7b. Reason for revert: breaks downstream tests Original change's description: > Migrate RemoteNtpTimeEstimator to more precise time representations > > Bug: webrtc:13757 > Change-Id: I880ab3cc6e4f72da587ae42ddca051332907c07f > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261311 > Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> > Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org> > Reviewed-by: Erik Språng <sprang@webrtc.org> > Reviewed-by: Emil Lundmark <lndmrk@webrtc.org> > Cr-Commit-Position: refs/heads/main@{#36817} Bug: webrtc:13757 Change-Id: Id21edb1378e6e944b24955396250ddc33fa70663 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/261722 Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Bot-Commit: rubber-stamper@appspot.gserviceaccount.com <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/main@{#36819}