After the most recent round of moving old stuff to 'outdated',
src/windows.c contained two references to non-existent files.
That broke 'make depend'. Updating it to turn those two into
comments seems risky because someone might add an include for
some new interface later in the file. So comment them out in
the source instead. Also, redo previous 'make depend' update
from about three weeks ago to do the same thing.
0b1f5ea45e