Remove extra LogDDP comments

Agent-Logs-Url: https://github.com/astomodynamics/cddp-cpp/sessions/aae117bf-421a-4278-94f0-375717e8e16e

Co-authored-by: astomodynamics <49183997+astomodynamics@users.noreply.github.com>

Author: Copilot

src/cddp_core/logddp_solver.cpp

@@ -368,9 +368,6 @@ bool LogDDPSolver::backwardPass(CDDP &context) {
   const double timestep = context.getTimestep();
   const auto &constraint_set = context.getConstraintSet();
 
-  // Pre-compute dynamics jacobians and hessians for all time steps.
-  // LogDDP needs continuous-time Jacobians for the backward pass, so compute
-  // them inline instead of using the base class's discrete-time derivatives.
   const int MIN_HORIZON_FOR_PARALLEL = 20;
   const bool use_parallel =
       options.enable_parallel && horizon >= MIN_HORIZON_FOR_PARALLEL;