STL save - blue lines still on my model?

I am using Creo Parametric 6.0 6.0.5.1

I just saved an stl of a part. Now my part has blue lines all over it indicating the tessellation that was created during the stl save. How do I remove these lines and where in Creo Parametric does it indicate that these blue lines are visible? If someone else were to look at this model, how would they know why these lines are present, what they are, and how to remove them?

This is a question about the user interface. How is this change in model appearance being communicated to me by Creo Parametric? I see nothing new in the model tree.