Thanks guys!
I would much rather change the fonts to free to distribute unecrypted versions that seems the legal route to take. (Not a fan of DRM)
In fact, I do not really need the embedded fonts at all in this particular epub, removing them is a bit of a pain though.
Need to remove them from fonts directory that is easy, also easy is removing them from CSS(just remove @font-face)
Finally there also references to fonts in the .xhtml files. such as
Code:
<p class="MinionPro-12-5-14"> </p>
That is PIA