Revert of C++ porting of the initial python script for conversational speech generation.

webrtc/modules/audio_processing/test/conversational_speech/convspeech_gen.cc

Index: webrtc/modules/audio_processing/test/conversational_speech/convspeech_gen.cc
diff --git a/webrtc/modules/audio_processing/test/conversational_speech/convspeech_gen.cc b/webrtc/modules/audio_processing/test/conversational_speech/convspeech_gen.cc
deleted file mode 100644
index 2b8859798782c8fdd8879a33ab11f1906d661ac9..0000000000000000000000000000000000000000
--- a/webrtc/modules/audio_processing/test/conversational_speech/convspeech_gen.cc
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#include <iostream>
-
-#include "gflags/gflags.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/modules/audio_processing/test/conversational_speech/settings.h"
-#include "webrtc/test/testsupport/fileutils.h"
-
-namespace webrtc {
-namespace test {
-namespace {
-
-// Adapting DirExists/FileExists interfaces to DEFINE_validator.
-auto dir_exists = [](const char* c, const std::string& dirpath) {
-  return DirExists(dirpath);
-};
-auto file_exists = [](const char* c, const std::string& filepath) {
-  return FileExists(filepath);
-};
-
-const char kUsageDescription[] =
-    "Usage: convspeech_gen\n"
-    "          -i <path/to/source/audiotracks>\n"
-    "          -t <path/to/timing_file.txt>\n"
-    "          -o <output/path>\n"
-    "\n\n"
-    "Command-line tool to generate multiple-end audio tracks to simulate "
-    "conversational speech with two or more participants.";
-
-DEFINE_string(i, "", "Directory containing the speech turn wav files");
-DEFINE_validator(i, dir_exists);
-DEFINE_string(t, "", "Path to the timing text file");
-DEFINE_validator(t, file_exists);
-DEFINE_string(o, "", "Output wav files destination path");
-DEFINE_validator(o, dir_exists);
-
-}  // namespace
-
-int main(int argc, char* argv[]) {
-  google::SetUsageMessage(kUsageDescription);
-  google::ParseCommandLineFlags(&argc, &argv, true);
-
-  ConvSpeechGeneratorSettings settings(FLAGS_i, FLAGS_t, FLAGS_o);
-
-  // TODO(alessiob): remove line below once debugged.
-  rtc::LogMessage::LogToDebug(rtc::LS_VERBOSE);
-  LOG(LS_VERBOSE) << "i = " << settings.audiotracks_path();
-  LOG(LS_VERBOSE) << "t = " << settings.timing_filepath();
-  LOG(LS_VERBOSE) << "o = " << settings.output_path();
-
-  return 0;
-}
-
-}  // namespace test
-}  // namespace webrtc
-
-int main(int argc, char* argv[]) {
-  return webrtc::test::main(argc, argv);
-}