Revert of Switch Windows over to BoringSSL from NSS.

Revert of Switch Windows over to BoringSSL from NSS. (patchset #2 id:20001 of https://codereview.chromium.org/765603002/)

Reason for revert:
breaks gn build
http://build.chromium.org/p/chromium.win/buildstatus?builder=Win8%20GN&number=1126

Original issue's description:
> Switch Windows over to BoringSSL from NSS.
>
> This is a much much larger change than the diff suggests. If it
> breaks something, please revert first and ask questions later.
>
> BUG=338884
>
> Committed: https://crrev.com/deaca2e618f14a475045cefcbe03d18eb79aaff7
> Cr-Commit-Position: refs/heads/master@{#306358}

TBR=rsleevi@chromium.org,brettw@chromium.org,davidben@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=338884
Committed: https://crrev.com/211c6e459c4b3cad323aed8a39911eae3e777e63
Cr-Commit-Position: refs/heads/master@{#306370}

[markusheintz_, 2014-12-02 12:12:38]

Created Revert of Switch Windows over to BoringSSL from NSS.

[commit-bot: I haz the power, 2014-12-02 12:13:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/769223002/1

[commit-bot: I haz the power, 2014-12-02 12:14:06]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-02 12:15:28]

Patchset 1 (id:??) landed as
https://crrev.com/211c6e459c4b3cad323aed8a39911eae3e777e63
Cr-Commit-Position: refs/heads/master@{#306370}