Clean up the Config to enable 48kHz support in AudioProcessing

webrtc/modules/audio_processing/audio_processing_impl.cc

Index: webrtc/modules/audio_processing/audio_processing_impl.cc
diff --git a/webrtc/modules/audio_processing/audio_processing_impl.cc b/webrtc/modules/audio_processing/audio_processing_impl.cc
index 87b82a6a3509131adae9ed698cc0f896fd01d4c0..f5e1564e185f48de23b9dc1df31bd2a741d3b053 100644
--- a/webrtc/modules/audio_processing/audio_processing_impl.cc
+++ b/webrtc/modules/audio_processing/audio_processing_impl.cc
@@ -194,8 +194,7 @@ AudioProcessingImpl::AudioProcessingImpl(const Config& config,
 #endif
       beamformer_enabled_(config.Get<Beamforming>().enabled),
       beamformer_(beamformer),
-      array_geometry_(config.Get<Beamforming>().array_geometry),
-      supports_48kHz_(config.Get<AudioProcessing48kHzSupport>().enabled) {
+      array_geometry_(config.Get<Beamforming>().array_geometry) {
   echo_cancellation_ = new EchoCancellationImpl(this, crit_);
   component_list_.push_back(echo_cancellation_);
 
@@ -350,7 +349,7 @@ int AudioProcessingImpl::InitializeLocked(int input_sample_rate_hz,
   // We process at the closest native rate >= min(input rate, output rate)...
   int min_proc_rate = std::min(fwd_in_format_.rate(), fwd_out_format_.rate());
   int fwd_proc_rate;
-  if (supports_48kHz_ && min_proc_rate > kSampleRate32kHz) {
+  if (min_proc_rate > kSampleRate32kHz) {
     fwd_proc_rate = kSampleRate48kHz;
   } else if (min_proc_rate > kSampleRate16kHz) {
     fwd_proc_rate = kSampleRate32kHz;