Delete unused method FilesystemInterface::DeleteEmptyFolder.

Delete unused method FilesystemInterface::DeleteEmptyFolder.

It's left-over since cl https://codereview.webrtc.org/2887093002.

In addition, fix override declarations and formatting in
win32filesystem.h.

BUG=webrtc:7345, webrtc:6424
Review-Url: https://codereview.webrtc.org/2930023002
Cr-Commit-Position: refs/heads/master@{#18549}
Committed: https://chromium.googlesource.com/external/webrtc/+/f52ef71db7cad23327077fe9e6ae996802cee838

[nisse-webrtc, 2017-06-09 11:35:14]

nisse@webrtc.org changed reviewers:
+ deadbeef@webrtc.org

[nisse-webrtc, 2017-06-09 11:35:15]

PTAL

[Taylor Brandstetter, 2017-06-09 21:14:01]

lgtm

[nisse-webrtc, 2017-06-13 06:46:34]

The CQ bit was checked by nisse@webrtc.org

[commit-bot: I haz the power, 2017-06-13 06:46:37]

CQ is trying da patch.

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

[commit-bot: I haz the power, 2017-06-13 07:10:08]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1497336394633850, "parent_rev":
"f9fc4a5d03ff4274aa90bb0a2fc074ce655e34cd", "commit_rev":
"f52ef71db7cad23327077fe9e6ae996802cee838"}

[commit-bot: I haz the power, 2017-06-13 07:10:14]

Description was changed from

==========
Delete unused method FilesystemInterface::DeleteEmptyFolder.

It's left-over since cl https://codereview.webrtc.org/2887093002.

In addition, fix override declarations and formatting in
win32filesystem.h.

BUG=webrtc:7345,webrtc:6424
==========

to

==========
Delete unused method FilesystemInterface::DeleteEmptyFolder.

It's left-over since cl https://codereview.webrtc.org/2887093002.

In addition, fix override declarations and formatting in
win32filesystem.h.

BUG=webrtc:7345,webrtc:6424

Review-Url: https://codereview.webrtc.org/2930023002
Cr-Commit-Position: refs/heads/master@{#18549}
Committed:
https://chromium.googlesource.com/external/webrtc/+/f52ef71db7cad23327077fe9e...
==========

[commit-bot: I haz the power, 2017-06-13 07:10:15]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/f52ef71db7cad23327077fe9e...