message: spherical harmonics: remove unused vars in sh_eval_1
diff: @@ -56,7 +56,7 @@ void sh_eval_1(const Array &d, value_t<expr_t<Array>> *out) {
  using Scalar = scalar_t<Value>;
  Value x = d.x(), y = d.y(), z = d.z();
  - Value c0, c1, s0, s1, tmp_a, tmp_b, tmp_c;
  + Value c0, s0, tmp_a;
  store(out + 0, Value(Scalar(0.28209479177387814)));
  store(out + 2, z * Scalar(0.488602511902919923));
  