message: Removed unused variable doReverseChannels.
diff: @@ -225,14 +225,8 @@ static void GetTopN(const uint8_t* prediction, const int prediction_size, const
  assert(pixelBuffer != NULL);
  OSType sourcePixelFormat = CVPixelBufferGetPixelFormatType(pixelBuffer);
  - int doReverseChannels;
  - if (kCVPixelFormatType_32ARGB == sourcePixelFormat) {
  - doReverseChannels = 1;
  - } else if (kCVPixelFormatType_32BGRA == sourcePixelFormat) {
  - doReverseChannels = 0;
  - } else {
  - assert(false); // Unknown source format
  - }
  + assert(sourcePixelFormat == kCVPixelFormatType_32ARGB ||
  + sourcePixelFormat == kCVPixelFormatType_32BGRA);
  const int sourceRowBytes = (int)CVPixelBufferGetBytesPerRow(pixelBuffer);
  const int image_width = (int)CVPixelBufferGetWidth(pixelBuffer);
  