message: Removed no longer needed protected make_csr function
diff: @@ -289,13 +289,6 @@ protected:
  void apply2_impl(const LinOp *alpha, const LinOp *b, LinOp *x) const;
  - /**
  - * Simple helper function to factorize conversion code of COO matrix to CSR.
  - *
  - * @return this COO matrix in CSR format
  - */
  - std::unique_ptr<Csr<ValueType, IndexType>> make_csr() const;
  -
  private:
  Array<value_type> values_;
  Array<index_type> col_idxs_;
  