Follow-up: Remove old DelayCorrection AEC config

talk/app/webrtc/localaudiosource.cc

 /*
  * libjingle
  * Copyright 2013 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 35 matching lines @@
   // This design relies on the fact that all the audio constraints are actually
   // "options", i.e. boolean-valued and always satisfiable.  If the constraints
   // are extended to include non-boolean values or actual format constraints,
   // a different algorithm will be required.
   struct {
     const char* name;
     cricket::Settable<bool>& value;
   } key_to_value[] = {
       {MediaConstraintsInterface::kGoogEchoCancellation,
        options->echo_cancellation},
-      // Both kExperimentalEchoCancellation (old) and
-      // kExtendedFilterEchoCancellation (new) translate to
-      // extended_filter_aec
-      // option being set. This is to manage the transition from the old to
-      // the
-      // new without breaking dependent code.
-      {MediaConstraintsInterface::kExperimentalEchoCancellation,
-       options->extended_filter_aec},
       {MediaConstraintsInterface::kExtendedFilterEchoCancellation,
        options->extended_filter_aec},
       {MediaConstraintsInterface::kDAEchoCancellation,
        options->delay_agnostic_aec},
       {MediaConstraintsInterface::kAutoGainControl, options->auto_gain_control},
       {MediaConstraintsInterface::kExperimentalAutoGainControl,
        options->experimental_agc},
       {MediaConstraintsInterface::kNoiseSuppression,
        options->noise_suppression},
       {MediaConstraintsInterface::kExperimentalNoiseSuppression,
@@ skipping 38 matching lines @@
   // constraints.
   FromConstraints(constraints->GetOptional(), &options_);
 
   cricket::AudioOptions mandatory_options;
   FromConstraints(constraints->GetMandatory(), &mandatory_options);
   options_.SetAll(mandatory_options);
   source_state_ = kLive;
 }
 
 }  // namespace webrtc