Revert of Introduced new scheme for controlling the functionality inside the audio processing module

webrtc/modules/audio_processing/test/process_test.cc

Index: webrtc/modules/audio_processing/test/process_test.cc
diff --git a/webrtc/modules/audio_processing/test/process_test.cc b/webrtc/modules/audio_processing/test/process_test.cc
index f1ac71752aff0b3528a35dd7bc11b2474608ddeb..ad769adab491fcb544d08820fe6b68e66ee44ff7 100644
--- a/webrtc/modules/audio_processing/test/process_test.cc
+++ b/webrtc/modules/audio_processing/test/process_test.cc
@@ -177,7 +177,6 @@
   int extra_delay_ms = 0;
   int override_delay_ms = 0;
   Config config;
-  AudioProcessing::Config apm_config;
 
   ASSERT_EQ(apm->kNoError, apm->level_estimator()->Enable(true));
   for (int i = 1; i < argc; i++) {
@@ -263,7 +262,8 @@
                         suppression_level)));
 
     } else if (strcmp(argv[i], "--level_control") == 0) {
-      apm_config.level_controller.enabled = true;
+      config.Set<LevelControl>(new LevelControl(true));
+
     } else if (strcmp(argv[i], "--extended_filter") == 0) {
       config.Set<ExtendedFilter>(new ExtendedFilter(true));
 
@@ -452,7 +452,6 @@
       FAIL() << "Unrecognized argument " << argv[i];
     }
   }
-  apm->ApplyConfig(apm_config);
   apm->SetExtraOptions(config);
 
   // If we're reading a protobuf file, ensure a simulation hasn't also