Removed unused API functions in AudioProcessing and AudioProcessingModule

webrtc/modules/audio_processing/test/audio_processing_unittest.cc

Index: webrtc/modules/audio_processing/test/audio_processing_unittest.cc
diff --git a/webrtc/modules/audio_processing/test/audio_processing_unittest.cc b/webrtc/modules/audio_processing/test/audio_processing_unittest.cc
index d82ea31c24b1713f6f87ac0e76e00f19df33dc3e..3ebea13a4552f6104b331464a166e3e4341b74dc 100644
--- a/webrtc/modules/audio_processing/test/audio_processing_unittest.cc
+++ b/webrtc/modules/audio_processing/test/audio_processing_unittest.cc
@@ -902,7 +902,6 @@ TEST_F(ApmTest, SampleRatesInt) {
   for (size_t i = 0; i < sizeof(fs) / sizeof(*fs); i++) {
     SetContainerFormat(fs[i], 2, frame_, &float_cb_);
     EXPECT_NOERR(ProcessStreamChooser(kIntFormat));
-    EXPECT_EQ(fs[i], apm_->input_sample_rate_hz());
   }
 }