Revert of Test changing default Windows compiler to VS2017

Revert of Test changing default Windows compiler to VS2017 (patchset #1 id:1 of https://codereview.chromium.org/2862723004/ )

Reason for revert:
Build 61.0.3134.0 uses VS 2017 and that will be sufficient to let us look for performance regressions and crashes, so I am reverting.

Original issue's description:
> Test changing default Windows compiler to VS2017
> 
> Doing another VS2017 test over the week end now to see if a recently
> discovered code-gen bug has been fixed. The VS 2017 package now uses
> VS 2017 Update 3 Preview 2 (was Preview 1 last time). At least one
> code-gen bug was fixed by Preview 2 but this bug may be a new one.
> 
> This CL is currently purely for testing purposes and will be reverted by
> the end of the week end.
> 
> R=scottmg@chromium.org
> BUG=683729, 727671
> 
> Review-Url: https://codereview.chromium.org/2862723004
> Cr-Commit-Position: refs/heads/master@{#480264}
> Committed: https://chromium.googlesource.com/chromium/src/+/f278a33ca6aff0723f13942bbb47b3753bea543d

TBR=scottmg@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=683729, 727671
Review-Url: https://codereview.chromium.org/2944773002
Cr-Commit-Position: refs/heads/master@{#480315}
Committed: https://chromium.googlesource.com/chromium/src/+/eb339abb6c31f0f6a02d7b7038031ced69898eea

[brucedawson, 2017-06-18 18:26:34]

The CQ bit was checked by brucedawson@chromium.org

[brucedawson, 2017-06-18 18:26:34]

Created Revert of Test changing default Windows compiler to VS2017

[commit-bot: I haz the power, 2017-06-18 18:26:42]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-06-18 23:25:54]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497810394314590, "parent_rev":
"dc6b6cf4e7fac156375f196a3a0f2699ad522e29", "commit_rev":
"90feb5fac62ef129150c87d14d289b26bbeaf7cd"}

[commit-bot: I haz the power, 2017-06-18 23:26:07]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497810394314590, "parent_rev":
"c7617a4bfc193edcb2bf627c8ebb3f3fe2f6f143", "commit_rev":
"eb339abb6c31f0f6a02d7b7038031ced69898eea"}

[commit-bot: I haz the power, 2017-06-18 23:26:18]

Description was changed from

==========
Revert of Test changing default Windows compiler to VS2017 (patchset #1 id:1 of
https://codereview.chromium.org/2862723004/ )

Reason for revert:
Build 61.0.3134.0 uses VS 2017 and that will be sufficient to let us look for
performance regressions and crashes, so I am reverting.

Original issue's description:
> Test changing default Windows compiler to VS2017
> 
> Doing another VS2017 test over the week end now to see if a recently
> discovered code-gen bug has been fixed. The VS 2017 package now uses
> VS 2017 Update 3 Preview 2 (was Preview 1 last time). At least one
> code-gen bug was fixed by Preview 2 but this bug may be a new one.
> 
> This CL is currently purely for testing purposes and will be reverted by
> the end of the week end.
> 
> R=scottmg@chromium.org
> BUG=683729,727671
> 
> Review-Url: https://codereview.chromium.org/2862723004
> Cr-Commit-Position: refs/heads/master@{#480264}
> Committed:
https://chromium.googlesource.com/chromium/src/+/f278a33ca6aff0723f13942bbb47...

TBR=scottmg@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=683729,727671
==========

to

==========
Revert of Test changing default Windows compiler to VS2017 (patchset #1 id:1 of
https://codereview.chromium.org/2862723004/ )

Reason for revert:
Build 61.0.3134.0 uses VS 2017 and that will be sufficient to let us look for
performance regressions and crashes, so I am reverting.

Original issue's description:
> Test changing default Windows compiler to VS2017
> 
> Doing another VS2017 test over the week end now to see if a recently
> discovered code-gen bug has been fixed. The VS 2017 package now uses
> VS 2017 Update 3 Preview 2 (was Preview 1 last time). At least one
> code-gen bug was fixed by Preview 2 but this bug may be a new one.
> 
> This CL is currently purely for testing purposes and will be reverted by
> the end of the week end.
> 
> R=scottmg@chromium.org
> BUG=683729,727671
> 
> Review-Url: https://codereview.chromium.org/2862723004
> Cr-Commit-Position: refs/heads/master@{#480264}
> Committed:
https://chromium.googlesource.com/chromium/src/+/f278a33ca6aff0723f13942bbb47...

TBR=scottmg@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=683729,727671

Review-Url: https://codereview.chromium.org/2944773002
Cr-Commit-Position: refs/heads/master@{#480315}
Committed:
https://chromium.googlesource.com/chromium/src/+/eb339abb6c31f0f6a02d7b703803...
==========

[commit-bot: I haz the power, 2017-06-18 23:26:19]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/eb339abb6c31f0f6a02d7b703803...