Get rid of kind-of silly create_ptr function.
Get rid of kind-of silly create_ptr function.

It was using more space than it was saving; just remove
it.

Signed-off-by: Chris Lalancette <281cd07d7578d97c83271fbbf2faddb83ab3791c@gmail.com>

clalancette/pycdlib,clalancette/pyiso