Question about "Comments"

For our project, we re-used some xslt stylesheets given by Professor Bud and tailored it to our specific case.  My question is when we turn in our stylesheets and other documents, do we need to delete the comments Bud inserted?  I kind of remember that during  last class, Bud mentioned we could either delete it or change the comments based on our specific case.  Which one is better?

In the project description,  it emphasizes on how well other people can re-use our created .xml, .xsl.  So I think it will be better if we have the comments there so other people can have a better understanding and change the codes accordingly.

Any opinion about my question?