[petsc-dev] #if 0 stuff in source code

[Karl Rupp]

Hi,

 >      There is a bunch of #if 0  droplets in the source code related 
to the use of CUSP. Can all that be removed? It isn’t good to have dead 
code like that in source. It’s ugly and confusing.

Most of this is in the code base for at least 1.5 years now (it was 
there when I first looked at it), so I think it can be removed as it 
hasn't been needed in any way. However, I'd like to deal with Dominic's 
pull request first in order not to make the merge more painful than 
necessary.

Best regards,
Karli