busybox: don't disable static option

Don't change the busybox STATIC option if buildroots PREFER_STATIC_LIB option
is not set. Not to prefer static linking doesn't imply prefer dynamic linking
for all packages.

Signed-off-by: Patrick Ziegler <patrick.ziegler@fh-kl.de>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/busybox/busybox.mk

@@ -106,10 +106,6 @@ ifeq ($(BR2_PREFER_STATIC_LIB),y)
 define BUSYBOX_PREFER_STATIC
 	$(call KCONFIG_ENABLE_OPT,CONFIG_STATIC,$(BUSYBOX_BUILD_CONFIG))
 endef
-else
-define BUSYBOX_PREFER_STATIC
-	$(call KCONFIG_DISABLE_OPT,CONFIG_STATIC,$(BUSYBOX_BUILD_CONFIG))
-endef
 endif
 
 # Disable usage of inetd if netkit-base package is selected