Revert of components/metrics: Add runtime memory leak detector

Revert of components/metrics: Add runtime memory leak detector (patchset #52 id:2120001 of https://codereview.chromium.org/986503002/ )

Reason for revert:
This CL has been causing the builder Linux ChromiumOS Tests (dbg)(1) to fail:

https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/builds/9298

Original issue's description:
> components/metrics: Add runtime memory leak detector
>
> This patch adds heuristic-based memory leak detector.
> Unlike traditional leak detectors like valgrind,
> it doesn't wait until a process terminates to check for
> leftover allocations. Instead, it analyzes allocation
> patterns over time.
>
> This code is not thread-safe. It is up to the caller of this code to ensure thread safety.
>
> BUG=382705
>
> Signed-off-by: Simon Que <sque@chromium.org>;
>
> Committed: https://crrev.com/d02b109cb1f41b7ea0584d0910c8bb4cf21cb521
> Cr-Commit-Position: refs/heads/master@{#361012}

TBR=jochen@chromium.org,asvitkine@chromium.org,bjanakiraman@chromium.org,gpike@chromium.org,jar@chromium.org,thakis@chromium.org,wfh@chromium.org,sque@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=382705
Committed: https://crrev.com/0ce07d8542c286510f4ea85c89da3ee070fe4b4a
Cr-Commit-Position: refs/heads/master@{#361058}

[tsergeant, 2015-11-23 00:06:56]

Created Revert of components/metrics: Add runtime memory leak detector

[commit-bot: I haz the power, 2015-11-23 00:07:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1472693002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1472693002/1

[commit-bot: I haz the power, 2015-11-23 00:07:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-23 00:08:57]

Patchset 1 (id:??) landed as
https://crrev.com/0ce07d8542c286510f4ea85c89da3ee070fe4b4a
Cr-Commit-Position: refs/heads/master@{#361058}

[Simon Que, 2015-11-23 00:26:22]

On 2015/11/23 00:08:57, commit-bot: I haz the power wrote:
> Patchset 1 (id:??) landed as
> https://crrev.com/0ce07d8542c286510f4ea85c89da3ee070fe4b4a
> Cr-Commit-Position: refs/heads/master@{#361058}

I created CLs to fix it, and linked to them on the appropriate threads. I guess
you missed them.
https://codereview.chromium.org/1468873002/
https://codereview.chromium.org/1471623003/