Revert of Telemetry: Fix a bad path in win_platform_backend. (patchset …

…#1 id:1 of https://codereview.chromium.org/1058853003/)

Reason for revert:
Speculatively revert to address:

https://build.chromium.org/p/chromium.win/builders/Vista%20Tests%20%281%29/builds/55265

No tests actually fail, but the test process still returns 1 which causes the failure:

828 tests run, 0 failures.
started: Mon Apr 20 13:08:19 2015
ended: Mon Apr 20 13:50:19 2015
duration: 41 mins, 59 secs
status: FAILURE
status reason: return code was 1.

This is the only CL in the blame-list that has anything to do with telemetry tests.

Original issue's description:
> Telemetry: Fix a bad path in win_platform_backend.
>
> BUG=
>
> Committed: https://crrev.com/0ede054b94179ad1ba09634dcecf4aa471f13b72
> Cr-Commit-Position: refs/heads/master@{#325884}

TBR=dtu@chromium.org,erikchen@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=

Review URL: https://codereview.chromium.org/1100553005

Cr-Commit-Position: refs/heads/master@{#325944}

tools/telemetry/telemetry/core/platform/win_platform_backend.py

@@ -60,8 +60,7 @@ def _InstallWinRing0():
 
   # Check for WinRing0 and download if needed.
   if not (os.path.exists(dll_path) and os.path.exists(driver_path)):
-    win_binary_dir = os.path.join(
-        path.GetTelemetryDir(), 'bin', 'win', 'AMD64')
+    win_binary_dir = os.path.join(path.GetTelemetryDir(), 'bin', 'win')
     zip_path = os.path.join(win_binary_dir, 'winring0.zip')
     cloud_storage.GetIfChanged(zip_path, bucket=cloud_storage.PUBLIC_BUCKET)
     try: