Revert of Adding a some checks and switching out a few assert for RTC_[D]CHECK.

webrtc/voice_engine/utility.cc

Index: webrtc/voice_engine/utility.cc
diff --git a/webrtc/voice_engine/utility.cc b/webrtc/voice_engine/utility.cc
index 37e12cea4f6aff97c8b426b9d0f2e2d7979fb839..605e55369e3d4a31666e17bf69d3b04ccd054630 100644
--- a/webrtc/voice_engine/utility.cc
+++ b/webrtc/voice_engine/utility.cc
@@ -10,7 +10,6 @@
 
 #include "webrtc/voice_engine/utility.h"
 
-#include "webrtc/base/checks.h"
 #include "webrtc/base/logging.h"
 #include "webrtc/common_audio/resampler/include/push_resampler.h"
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
@@ -53,18 +52,21 @@
 
   if (resampler->InitializeIfNeeded(sample_rate_hz, dst_frame->sample_rate_hz_,
                                     audio_ptr_num_channels) == -1) {
-    FATAL() << "InitializeIfNeeded failed: sample_rate_hz = " << sample_rate_hz
-            << ", dst_frame->sample_rate_hz_ = " << dst_frame->sample_rate_hz_
-            << ", audio_ptr_num_channels = " << audio_ptr_num_channels;
+    LOG(LS_ERROR) << "InitializeIfNeeded failed: sample_rate_hz = "
+                  << sample_rate_hz << ", dst_frame->sample_rate_hz_ = "
+                  << dst_frame->sample_rate_hz_
+                  << ", audio_ptr_num_channels = " << audio_ptr_num_channels;
+    assert(false);
   }
 
   const size_t src_length = samples_per_channel * audio_ptr_num_channels;
   int out_length = resampler->Resample(audio_ptr, src_length, dst_frame->data_,
                                        AudioFrame::kMaxDataSizeSamples);
   if (out_length == -1) {
-    FATAL() << "Resample failed: audio_ptr = " << audio_ptr
-            << ", src_length = " << src_length
-            << ", dst_frame->data_ = " << dst_frame->data_;
+    LOG(LS_ERROR) << "Resample failed: audio_ptr = " << audio_ptr
+                  << ", src_length = " << src_length
+                  << ", dst_frame->data_ = " << dst_frame->data_;
+    assert(false);
   }
   dst_frame->samples_per_channel_ = out_length / audio_ptr_num_channels;
 
@@ -82,10 +84,8 @@
                 const int16_t source[],
                 size_t source_channel,
                 size_t source_len) {
-  RTC_DCHECK_GE(target_channel, 1u);
-  RTC_DCHECK_LE(target_channel, 2u);
-  RTC_DCHECK_GE(source_channel, 1u);
-  RTC_DCHECK_LE(source_channel, 2u);
+  assert(target_channel == 1 || target_channel == 2);
+  assert(source_channel == 1 || source_channel == 2);
 
   if (target_channel == 2 && source_channel == 1) {
     // Convert source from mono to stereo.