[klibc] Fix incorrect dependency

Remove a bogus dependency which would cause circular rebuilds at
high -j levels.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/usr/klibc/syscalls/Kbuild b/usr/klibc/syscalls/Kbuild
index e7ae1d2..a1d408d 100644
--- a/usr/klibc/syscalls/Kbuild
+++ b/usr/klibc/syscalls/Kbuild
@@ -64,7 +64,6 @@
 
 $(obj)/typesize.c: $(KLIBCSRC)/syscalls.pl $(obj)/SYSCALLS.i \
                       $(KLIBCSRC)/arch/$(KLIBCARCHDIR)/sysstub.ph \
-                      $(call objectify, $(syscall-objs:.o=.S)) \
                       $(src)/syscommon.h $(obj)/syscalls.nrs FORCE
 	$(call if_changed,syscalsz)