Retire Symantec CT Logs

The Symantec Log, Symantec 'Sirius' Log, and Symantec 'Vega' Log are
being retired with an effective date of February 16, 2019 with a
timestamp of 1550275200.

Bug: 928879
Change-Id: I8f9a3da420acdda7739662481fe505bc7c46bf3e
Reviewed-on: https://chromium-review.googlesource.com/c/1481606
Reviewed-by: Andrew Whalley <awhalley@chromium.org>
Reviewed-by: Nick Harper <nharper@chromium.org>
Commit-Queue: Andrew Whalley <awhalley@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634675}
1 file changed