busybox: remove reference to removed httpd init script

Patch from Daniel Harding.

SVN-Revision: 33765

package/busybox/Makefile

@@ -33,7 +33,6 @@ else
 endif
 
 init-y :=
-init-$(CONFIG_BUSYBOX_CONFIG_HTTPD) += httpd
 init-$(CONFIG_BUSYBOX_CONFIG_CROND) += cron
 init-$(CONFIG_BUSYBOX_CONFIG_TELNETD) += telnet