message: Removing reference to documentation that no longer exists
diff: @@ -252,9 +252,7 @@ public:
  functions. They compute field values on the interface between elements,
  or on boundary elements, by interpolating the field in a neighboring
  element. The \a side argument indices which neighboring element should be
  - used: 0, 1, or 2 (automatically chosen). See the
  - FaceElementTransformations documentation in eltrans.hpp for more
  - information on the \a side parameter.
  + used: 0, 1, or 2 (automatically chosen).
  @warning These methods retrieve and use the FaceElementTransformations
  object from the mfem::Mesh. This can alter the state of the face element
  