busybox: force lfs build

Drop the buildroot toolchain non-largefile support option since it's
being removed.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/busybox/busybox.mk

@@ -92,17 +92,10 @@ define BUSYBOX_SET_MMU
 endef
 endif
 
-ifeq ($(BR2_LARGEFILE),y)
 define BUSYBOX_SET_LARGEFILE
 	$(call KCONFIG_ENABLE_OPT,CONFIG_LFS,$(BUSYBOX_BUILD_CONFIG))
 	$(call KCONFIG_ENABLE_OPT,CONFIG_FDISK_SUPPORT_LARGE_DISKS,$(BUSYBOX_BUILD_CONFIG))
 endef
-else
-define BUSYBOX_SET_LARGEFILE
-	$(call KCONFIG_DISABLE_OPT,CONFIG_LFS,$(BUSYBOX_BUILD_CONFIG))
-	$(call KCONFIG_DISABLE_OPT,CONFIG_FDISK_SUPPORT_LARGE_DISKS,$(BUSYBOX_BUILD_CONFIG))
-endef
-endif
 
 # If IPv6 is enabled then enable basic ifupdown support for it
 ifeq ($(BR2_INET_IPV6),y)