Remove a spurious restrict in cast.
Remove a spurious restrict in cast.

As far as I can tell, restrict only matters on the declaration side and
doesn't mean anything in a cast. Unlike const. Flagged by Coverity.

darcs-hash:20090217065713-cac71-a0170926f6572707fe83db08a35103aa7f97cd76.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf