Remove TLS 1.3 draft28.

Bug: 630147
Cq-Include-Trybots: luci.chromium.try:linux_mojo
Change-Id: Iea23b013ad1a2119e964ab5f60d8c9866f23e2c1
Reviewed-on: https://chromium-review.googlesource.com/1213929
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Reviewed-by: Chris Palmer <palmer@chromium.org>
Reviewed-by: Matt Menke <mmenke@chromium.org>
Reviewed-by: David Benjamin <davidben@chromium.org>
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589788}
12 files changed