Make sure no stale LLD checkout is around.

Make sure no stale LLD checkout is around.

We checked out LLD for a while on all platforms, and now some bots
have stale checkouts of it.  See bug for details.

BUG=635108
Committed: https://crrev.com/f2e30b8c230d923e61752352cf4c37eb13eea3d2
Cr-Commit-Position: refs/heads/master@{#410206}

[Nico, 2016-08-05 21:46:17]

thakis@chromium.org changed reviewers:
+ krasin@chromium.org

[krasin, 2016-08-05 21:49:32]

On 2016/08/05 21:46:18, Nico wrote:

I actually deleted it from the bots; it could be that some dev machines have a
stale checkout, though.

[krasin, 2016-08-05 21:50:05]

But I like that it's not future-proof. LGTM.

[krasin, 2016-08-05 21:50:21]

Arrrgh. It's *NOW* future-proof

[Nico, 2016-08-05 21:54:23]

The CQ bit was checked by thakis@chromium.org

[commit-bot: I haz the power, 2016-08-05 21:54:58]

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, 2016-08-05 23:16:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-05 23:18:31]

Description was changed from

==========
Make sure no stale LLD checkout is around.

We checked out LLD for a while on all platforms, and now some bots
have stale checkouts of it.  See bug for details.

BUG=635108
==========

to

==========
Make sure no stale LLD checkout is around.

We checked out LLD for a while on all platforms, and now some bots
have stale checkouts of it.  See bug for details.

BUG=635108

Committed: https://crrev.com/f2e30b8c230d923e61752352cf4c37eb13eea3d2
Cr-Commit-Position: refs/heads/master@{#410206}
==========

[commit-bot: I haz the power, 2016-08-05 23:18:32]

Patchset 1 (id:??) landed as
https://crrev.com/f2e30b8c230d923e61752352cf4c37eb13eea3d2
Cr-Commit-Position: refs/heads/master@{#410206}

[krasin1, 2016-08-06 01:31:16]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2218313002/ by krasin@chromium.org.

The reason for reverting is: Breaks clang_upload bot:

OSError: [Errno 2] No such file or directory:
'/b/build/slave/linux_upload_clang/build/src/third_party/llvm/tools/lld'

It seems that RmTree requires the directory to exist..