Revert of Installs test CA to android devices as part of browser startup so that apps can be tested with prox…

Revert of Installs test CA to android devices as part of browser startup so that apps can be tested with prox… (patchset #8 id:140001 of https://codereview.chromium.org/572123002/)

Reason for revert:
Userdebug build perf bots are still missing dependencies:
ImportError: No module named OpenSSL

Also, we'll need to gracefully degrade on user builds:
CertInstallError: Cert Install Failed

Original issue's description:
> Installs test CA to android devices as part of browser startup so that apps can be tested with proxy HTTPS server without code changes.
>
> BUG=412826
>
> Committed: https://crrev.com/f28d9cace2df4a9dcaa992c4df5b85e3b2674dbb
> Cr-Commit-Position: refs/heads/master@{#296619}
>
> Committed: https://crrev.com/10eb77a2c2843664e7d55d8a4535d66b7f95d9c8
> Cr-Commit-Position: refs/heads/master@{#297653}

TBR=nednguyen@google.com,slamm@google.com,slamm@chromium.org,hjd@chromium.org,friedman@chromium.org,wuhu@google.com
NOTREECHECKS=true
NOTRY=true
BUG=412826
Committed: https://crrev.com/36c8d5e285ab85c424151ae207797d17dc7d3d00
Cr-Commit-Position: refs/heads/master@{#297697}

[tonyg, 2014-10-01 19:51:42]

Created Revert of Installs test CA to android devices as part of browser startup
so that apps can be tested with prox…