Revert "Fix up reference times for period changes."

This reverts commit bb4e3baf6616da062c9a23694f13429eea39666d.

Reason for revert: Build cop test checking.

Bug: 128273693
Change-Id: I39aea1a8b6d3ffc7e4e49f2b398b3fa9415c0038
2 files changed