Remove #if 0 blocks.
Define dlong to long long instead of int64_t.
Remove generated files from source control.

These get regenerated all the time and clog revision diffs.
C guarantees that time.h provides time_t; sys/time.h is an XSI extension.
Remove a commented-out block of code.
Remove never-defined ifndef.
Apparently no modern machine has vfont.h, so don't try to use it.