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

webrtc/modules/audio_processing/BUILD.gn

 # Copyright (c) 2014 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.
 
 import("//build/config/arm.gni")
 import("//third_party/protobuf/proto_library.gni")
@@ skipping 457 matching lines @@
 
     if (rtc_enable_intelligibility_enhancer) {
       public_deps += [ ":intelligibility_proc" ]
     }
 
     if (rtc_enable_protobuf) {
       public_deps += [
         ":audioproc_f",
         ":audioproc_unittest_proto",
         ":unpack_aecdump",
-        "test/conversational_speech",
         "test/py_quality_assessment",
       ]
     }
   }
 
   rtc_source_set("audio_processing_unittests") {
     testonly = true
     sources = [
       "aec/echo_cancellation_unittest.cc",
       "aec/system_delay_unittest.cc",
@@ skipping 325 matching lines @@
       ]
 
       deps = [
         ":audioproc_debug_proto",
         "../..:webrtc_common",
         "../../base:rtc_base_approved",
       ]
     }
   }
 }