Revert 245788 "Reland: [Telemetry] Properly handle retries after..."

Breaks many chromium.perf benchmarks.

BUG=336026

> Reland: [Telemetry] Properly handle retries after browser crash.
> 
> Previously it was easy for the results to get into a bad state and assert in a
> variety of ways.
> 
> This ensures we ignore the partial results in the case of a crash.
> 
> This reland is tested with GPU functional tests. The main fix was to make all
> result types deep copyable instead of just CSV.
> 
> BUG=
> TBR=kbr@chromium.org
> 
> Review URL: https://codereview.chromium.org/138143021

TBR=tonyg@chromium.org

Review URL: https://codereview.chromium.org/143823003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@246046 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 246046