Delete class DirectoryIterator and FileRotatingStream read support.

Delete class DirectoryIterator and FileRotatingStream read support.

This is an exploratory cl, to find out what breaks when these features
are removed.

BUG=webrtc:7812, webrtc:6424

[nisse-webrtc, 2017-06-14 09:08:27]

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

[nisse-webrtc, 2017-06-14 09:08:27]

PTAL. I think both the android and the objc apis need a method to read the log
files, so that needs to be rewritten. If we really want to do it in C++ and
avoid code duplication, we could add something minimal based on the
ReadLogDirectory function I have in the test.

[nisse-webrtc, 2017-06-14 11:46:04]

On 2017/06/14 09:08:27, nisse-webrtc wrote:
> PTAL. I think both the android and the objc apis need a method to read the log
> files, so that needs to be rewritten. If we really want to do it in C++ and
> avoid code duplication, we could add something minimal based on the
> ReadLogDirectory function I have in the test.

And the linux_internal failures look as could be expected.

[nisse-webrtc, 2017-09-29 12:58:59]

On 2017/06/14 11:46:04, nisse-webrtc wrote:
> On 2017/06/14 09:08:27, nisse-webrtc wrote:
> > PTAL. I think both the android and the objc apis need a method to read the
log
> > files, so that needs to be rewritten. If we really want to do it in C++ and
> > avoid code duplication, we could add something minimal based on the
> > ReadLogDirectory function I have in the test.
> 
> And the linux_internal failures look as could be expected.

Moved to gerrit, cl https://webrtc-review.googlesource.com/c/src/+/4821