diff --git a/ortools/linear_solver/linear_solver_callback.h b/ortools/linear_solver/linear_solver_callback.h
index fee5a496a0..6c6a0713be 100644
--- a/ortools/linear_solver/linear_solver_callback.h
+++ b/ortools/linear_solver/linear_solver_callback.h
@@ -11,8 +11,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// See go/mpsolver-callbacks for documentation on how to use this file.
-
 #ifndef OR_TOOLS_LINEAR_SOLVER_LINEAR_SOLVER_CALLBACK_H_
 #define OR_TOOLS_LINEAR_SOLVER_LINEAR_SOLVER_CALLBACK_H_
 
@@ -137,7 +135,6 @@ class MPCallbackContext {
 // Extend this class with model specific logic, and register through
 // MPSolver::SetCallback, passing a pointer to this object.
 //
-// See go/mpsolver-callbacks for additional documentation.
 class MPCallback {
  public:
   // If you intend to call call MPCallbackContext::AddCut(), you must set
diff --git a/ortools/linear_solver/scip_callback.h b/ortools/linear_solver/scip_callback.h
index 58b3a28149..381bded70e 100644
--- a/ortools/linear_solver/scip_callback.h
+++ b/ortools/linear_solver/scip_callback.h
@@ -11,12 +11,11 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// See go/scip-callbacks for documentation.
 //
 // This file provides a simplified C++ API for using callbacks with SCIP and
 // MPSolver.  It can be used directly by users, although in most cases, the
 // mp_callback.h should be sufficient (in fact, SCIP's mp_callback.h
-// implementation is built on top of this).  See also go/mpsolver-callbacks.
+// implementation is built on top of this).
 
 #ifndef OR_TOOLS_LINEAR_SOLVER_SCIP_CALLBACK_H_
 #define OR_TOOLS_LINEAR_SOLVER_SCIP_CALLBACK_H_
@@ -115,7 +114,6 @@ struct CallbackRangeConstraint {
   bool local = false;
 };
 
-// See go/scip-callbacks for additional documentation.
 template <typename Constraint>
 class ScipConstraintHandler {
  public: