Revert 254088 "Perf test to measure loading CDM library."

> Perf test to measure loading CDM library.
> 
> BUG=337674
> 
> Review URL: https://codereview.chromium.org/151283003

Failing on Windows.

BUG=348037
TBR=shadi@chromium.org

Review URL: https://codereview.chromium.org/184033006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254163 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 254163