message: remove never used code in onnximporter
diff: @@ -2053,39 +2053,6 @@ void ONNXImporter::parseMatMul(LayerParams& layerParams, const opencv_onnx::Node
  addLayer(layerParams, node_proto);
  }
  -void findBroadAxis(const MatShape& broadShape, const MatShape& outShape, size_t& axis, int& broadAxis)
  -{
  - // Currently, this function can only complete 1-dimensional expansion of broadShape.
  - // If there are two dimensions in broadShape that need to be expended, it will fail.
  - const size_t diff = outShape.size() - broadShape.size();
  -
  - // find the first non-one element of the broadcasting shape
  - axis = 0;
  - for (; axis < broadShape.size() && broadShape[axis] == 1; ++axis) {}
  -
  - // find the last non-one element of the broadcasting shape
  - size_t endAxis = broadShape.size();
  - for (; endAxis > axis && broadShape[endAxis - 1] == 1; --endAxis) {}
  -
  - // find one between axis and endAxis - as it needs to be broadcasted,
  - // dimensions from the left of axis and from the right of endAxis will be handled by Scale layer
  - broadAxis = -1;
  - for (size_t i = axis; i < endAxis; ++i)
  - {
  - size_t outAxis = i + diff;
  - if (outShape[outAxis] == broadShape[i])
  - {
  - continue;
  - }
  -
  - // ensure we need to broadcast only 1 dimension in the middle
  - CV_Assert(broadShape[i] == 1 && broadAxis == -1);
  - broadAxis = static_cast<int>(outAxis);
  - }
  -
  - axis += diff;
  -}
  -
  void ONNXImporter::parseConv(LayerParams& layerParams, const opencv_onnx::NodeProto& node_proto_)
  {
  opencv_onnx::NodeProto node_proto = node_proto_;
  