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}