Comment 177 for bug 10910

This bug is not half as bad now that the fix for bug 446041 provides that
print.print_paper_* prefs (once they exist) will override
print.postscript.paper_size.

The print.print_paper_* prefs will record the previous setting, but this will
only be different from print.postscript.paper_size if the value is been
changed in the page setup.

There is also much code here that can be removed and so make the use of
different prefs somewhat less confusing.