Delete unused spreadsort implementation.

webrtc/LICENSE_THIRD_PARTY

Index: webrtc/LICENSE_THIRD_PARTY
diff --git a/webrtc/LICENSE_THIRD_PARTY b/webrtc/LICENSE_THIRD_PARTY
index c7adbd310b3177f58b3ac444c181c4468c1fbf16..af1aa50d37e8d5f468923e7a2b1450bc4b99f24d 100644
--- a/webrtc/LICENSE_THIRD_PARTY
+++ b/webrtc/LICENSE_THIRD_PARTY
@@ -25,8 +25,6 @@ modules/audio_device/mac/portaudio/pa_ringbuffer.h
 modules/audio_processing/aec/aec_rdft.c
 system_wrappers/source/condition_variable_event_win.cc
 system_wrappers/source/set_thread_name_win.h
-system_wrappers/source/spreadsortlib/constants.hpp
-system_wrappers/source/spreadsortlib/spreadsort.hpp
 
 Individual licenses for each file:
 -------------------------------------------------------------------------------
@@ -457,32 +455,4 @@ purpose and non-infringement.
 (F) Platform Limitation - The licenses granted in sections 2(A) and 2(B)
 extend only to the software or derivative works that you create that run on a
 Microsoft Windows operating system product.
--------------------------------------------------------------------------------
-Files:
-system_wrappers/source/spreadsortlib/constants.hpp
-system_wrappers/source/spreadsortlib/spreadsort.hpp
 
-License:
-/*Boost Software License - Version 1.0 - August 17th, 2003
-
-Permission is hereby granted, free of charge, to any person or organization
-obtaining a copy of the software and accompanying documentation covered by
-this license (the "Software") to use, reproduce, display, distribute,
-execute, and transmit the Software, and to prepare derivative works of the
-Software, and to permit third-parties to whom the Software is furnished to
-do so, all subject to the following:
-
-The copyright notices in the Software and this entire statement, including
-the above license grant, this restriction and the following disclaimer,
-must be included in all copies of the Software, in whole or in part, and
-all derivative works of the Software, unless such copies or derivative
-works are solely in the form of machine-executable object code generated by
-a source language processor.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
-SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
-FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-DEALINGS IN THE SOFTWARE.*/