This deletes the code for Expect-CT, an obsolete featured that was deprecated and has been disabled by default for several milestones. The CL mostly contains mechanical code deletion. One exception is that there is new code in net/http/transport_security_persister.cc (and corresponding unit test) to delete Expect-CT entries when they are read from disk.
Bug: 1232560
Change-Id: I530b57252ad029aaf79335b3928e45117262edc5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4051985
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Reviewed-by: Hiroki Nakagawa <nhiroki@chromium.org>
Reviewed-by: Nicolas Ouellet-Payeur <nicolaso@chromium.org>
Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: Emily Stark <estark@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1080441}