Revert of Switch Linux and CrOS to BoringSSL.

Revert of Switch Linux and CrOS to BoringSSL. (patchset #8 id:130001 of https://codereview.chromium.org/1210073014/)

Reason for revert:
This CL seems to cause the issue in Chromium build system.

https://build.chromium.org/p/chromium.chrome/builders/Google%20Chrome%20Linux%20x64/builds/2784

Original issue's description:
> Switch Linux and CrOS to BoringSSL.
>
> If this causes problems, please revert first and ask questions
> later.
>
> BUG=462040
>
> Committed: https://crrev.com/df391ba1d19134bb0a6e895a4a33f1af4932545d
> Cr-Commit-Position: refs/heads/master@{#338713}

TBR=rsleevi@chromium.org,thakis@chromium.org,davidben@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=462040
Committed: https://crrev.com/fd2634ebfc39feec8210daa1ed1b9d0f8cb6b8b4
Cr-Commit-Position: refs/heads/master@{#338725}

[hongchan, 2015-07-14 20:01:15]

Created Revert of Switch Linux and CrOS to BoringSSL.

[commit-bot: I haz the power, 2015-07-14 20:03:06]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1235673005/1

[commit-bot: I haz the power, 2015-07-14 20:05:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-07-14 20:07:21]

Patchset 1 (id:??) landed as
https://crrev.com/fd2634ebfc39feec8210daa1ed1b9d0f8cb6b8b4
Cr-Commit-Position: refs/heads/master@{#338725}