Revert "Warn in the DevTools console for TLS 1.0 and 1.1."

This reverts commit 49c4e7569b69639fea676689a2a8253cac162bec.

Reason for revert: 239 LayoutTests failure on Mac10.10 bot
https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Mac10.10%20Tests/36316

Original change's description:
> Warn in the DevTools console for TLS 1.0 and 1.1.
>
> TLS 1.0 and 1.1 are deprecated. See:
> https://security.googleblog.com/2018/10/modernizing-transport-security.html
> https://groups.google.com/a/chromium.org/d/msg/blink-dev/EHSnAn2rucg/oiu0DoQ0CAAJ
>
> As part of that deprecation, show a console warning in DevTools and also
> add a Blink-level UseCounter. (We typically measure things at the
> connection or request level for network features, but since we're
> plumbing this in anyway, go ahead and add one.) I mirrored the plumbing
> and UseCounters for Symantec certificates.
>
> Bug: 896013
> Change-Id: I9b45e6264a2119b7b68a5a9f282dfd63a372210a
> Reviewed-on: https://chromium-review.googlesource.com/c/1324878
> Commit-Queue: David Benjamin <davidben@chromium.org>
> Reviewed-by: Carlos IL <carlosil@chromium.org>
> Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
> Reviewed-by: Pavel Feldman <pfeldman@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#608456}

TBR=kinuko@chromium.org,davidben@chromium.org,pfeldman@chromium.org,carlosil@chromium.org

Change-Id: I708f0234f09dd8747841b970463728b37a4bdbcd
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 896013
Reviewed-on: https://chromium-review.googlesource.com/c/1338390
Reviewed-by: Ella Ge <eirage@chromium.org>
Commit-Queue: Ella Ge <eirage@chromium.org>
Cr-Commit-Position: refs/heads/master@{#608534}
24 files changed