Remove HTTP-Based Public Key Pinning header parsing and persistence code.

And related code that uses it.

Cronet depends on the base dynamic PKP support, so is not removed here.

Based on https://crrev.com/c/1005960 by palmer & nharper.

Bug: 779166
Cq-Include-Trybots: luci.chromium.try:linux_mojo
Change-Id: I44044a3960174fcba1f1e120b18cbef3ff769812
Reviewed-on: https://chromium-review.googlesource.com/c/1260483
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#598657}
50 files changed