Niels Möller 394b4ebe38 Delete unused methods on rtc::Pathname.
Deleted methods Normalize(), clear(), empty(), folder(), parent_folder().

Bug: webrtc:6424
Change-Id: I7a7096b23f4ba675305de1728988d2cfb48f135f
Reviewed-on: https://webrtc-review.googlesource.com/80520
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23623}
2018-06-15 09:25:35 +00:00
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