remove redundant args to do_ln

Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/sysdeps/linux/Makefile.commonarch

@@ -31,7 +31,7 @@ ifneq ($(ARCH_HEADERS),)
 ARCH_HEADERS_OUT := $(patsubst %,$(top_builddir)include/%,$(ARCH_HEADERS))
 
 $(ARCH_HEADERS_OUT):
-	$(do_ln) -fs $(call rel_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(@F) $@
+	$(do_ln) $(call rel_srcdir)libc/sysdeps/linux/$(TARGET_ARCH)/$(@F) $@
 
 headers-y += $(ARCH_HEADERS_OUT)
 headers_clean-y += HEADERCLEAN_$(subst $(top_builddir),,$(ARCH_OUT))