Now that we have proper links, no need to fake up ones as part of

depend.  Now that we no longer need this hack, remove it.

Forgotten by: imp
Reminded by: nyan

sys/conf/Makefile.pc98

@@ -30,7 +30,6 @@ S=	../../..
 .endif
 .include "$S/conf/kern.pre.mk"
 
-EXTRA_KERNELDEP=rm -f ./machine ; ln -s $S/$M/include ./machine
 MKMODULESENV+=	MACHINE=pc98
 
 %BEFORE_DEPEND

sys/conf/kern.post.mk

@@ -139,9 +139,6 @@ genassym.o: $S/$M/$M/genassym.c
 ${SYSTEM_OBJS} genassym.o vers.o: opt_global.h
 
 kernel-depend:
-.if defined(EXTRA_KERNELDEP)
-	${EXTRA_KERNELDEP}
-.endif
 	rm -f .olddep
 	if [ -f .depend ]; then mv .depend .olddep; fi
 	${MAKE} _kernel-depend