This CL removes kNumMicrosecsPerSec and kNumMillisecsPerSec from modules/audio_device/win/core_audio_utility_win.h. kNumMillisecsPerSec was unused, while kNumMicrosecsPerSec has been replaced by rtc::kNumMicrosecsPerSec. Bug: webrtc:9693 Change-Id: I560aa9dad2bfb94a9bf67d3b9941700f1948086b Reviewed-on: https://webrtc-review.googlesource.com/102860 Reviewed-by: Henrik Andreassson <henrika@webrtc.org> Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24906}