Delete talk directory, and references from build_ios_libs.sh.

talk/LICENSE_THIRD_PARTY

Index: talk/LICENSE_THIRD_PARTY
diff --git a/talk/LICENSE_THIRD_PARTY b/talk/LICENSE_THIRD_PARTY
deleted file mode 100644
index 5a2760664ed530972828b560cb410212aaa13288..0000000000000000000000000000000000000000
--- a/talk/LICENSE_THIRD_PARTY
+++ /dev/null
@@ -1,27 +0,0 @@
-This source tree contains third party source code which is governed by third

[kjellander_webrtc, 2016/08/31 15:39:52]

These files actually live in webrtc/base/ now so I think we should keep this and
move it into webrtc/ instead.
I guess it was just missed when moving those sources from talk/base to
webrtc/base.

[nisse-webrtc, 2016/09/01 13:32:06]

Hmm. A file webrtc/LICENSE_THIRD_PARTY already exists, but with a different
structure to this one. 

I'm copying info about these files, except that I dropped the "Governed by"
lines which didn't fit in the new style, and I dropped libudev.h, which I
couldn't find in the tree.

[kjellander_webrtc, 2016/09/01 13:49:15]

Right, libudev was removed a while back. Your merged version looks reasonable to
me.

-party licenses. This file contains references to files which are under other
-licenses than the one provided in the COPYING file in the root of the source
-tree.
-
-Files governed by third party licenses:
-
-Governed by license within files (Public domain):
-Exact origin unknown
-base/base64.c
-base/base64.h
-
-Governed by http://www.fourmilab.ch/md5/ (Public domain):
-base/md5.c
-base/md5.h
-
-Governed by license within files (Public domain):
-Originally downloaded from http://svn.ghostscript.com/jbig2dec/tags/release_0_02/sha1.*
-base/sha1.c
-base/sha1.h
-
-Governed by http://sigslot.sourceforge.net/#license (Public domain):
-base/sigslot.cc
-base/sigslot.h
-
-Governed by http://www.freedesktop.org/wiki/Software/systemd (LGPL 2.1+):
-third_party/libudev/libudev.h