Revert "Add chrome_proxy.exe target for bookmark app shortcuts to target on Windows"

This reverts commit 6d4576ad4644c9a41e7801d635d3894a2f783ed2.

Reason for revert:
On second thought this is too risky to land on branch day.
Also I want to land the new binary separately from the shortcuts pointing to it so we can make sure it deploys properly before irreversibly depending on it (it's difficult to update shortcuts).

Original change's description:
> Add chrome_proxy.exe target for bookmark app shortcuts to target on Windows
> 
> This change adds a new executable to Windows called chrome_proxy.exe which
> opens chrome.exe with all arguments forwarded.
> 
> The purpose of the executable is for bookmark app shortcuts to target so
> they don't pick up the chrome.VisualElementsManifest.xml file when pinned
> to the Windows 10 start menu. This fixes a bug where pinned bookmark app
> shortcuts all use the Chrome logo instead of their own.
> 
> Bug: 732357
> Change-Id: I6f4385219329e6d6e446053fc1325082ce4328c6
> Reviewed-on: https://chromium-review.googlesource.com/c/1335075
> Reviewed-by: Lei Zhang <thestig@chromium.org>
> Reviewed-by: Greg Thompson <grt@chromium.org>
> Commit-Queue: Alan Cutter <alancutter@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#612477}

TBR=thestig@chromium.org,alancutter@chromium.org,mgiuca@chromium.org,grt@chromium.org

Change-Id: If327a489864c0bd6066ec13b3f9421f3be57636b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 732357
Reviewed-on: https://chromium-review.googlesource.com/c/1356163
Reviewed-by: Alan Cutter <alancutter@chromium.org>
Commit-Queue: Alan Cutter <alancutter@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612478}
24 files changed