Comment out debug print

Author: metab0t

lib/ipopt_model.cpp

@@ -603,8 +603,6 @@ void IpoptModel::analyze_structure()
 sparse_gradient_map.emplace(index, i);
 }
 
-fmt::print("before m_nl_evaluator\n");
-
 // analyze nonlinear constraints and objectives
 {
 auto &evaluator = m_nl_evaluator;