And remove custom expiration_time for release bots because currently it equals to default value Bug: webrtc:10047 Change-Id: Ife7fd154237575e3d43f7be814e1156624166dab Reviewed-on: https://webrtc-review.googlesource.com/c/120604 Commit-Queue: Artem Titarenko <artit@webrtc.org> Reviewed-by: Oleh Prypin <oprypin@webrtc.org> Cr-Commit-Position: refs/heads/master@{#26471}