admswconfig: Remove dead URL + HTTPS

Found using uscan.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

package/utils/admswconfig/Makefile

@@ -12,7 +12,7 @@ PKG_VERSION:=0.1
 PKG_RELEASE:=1
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://downloads.openwrt.org/sources
+PKG_SOURCE_URL:=https://downloads.openwrt.org/sources
 PKG_HASH:=37b4409ea2105520b4a7327e53c3210251000ddf58f81a8e4c19e6ff9d615afe
 
 PKG_FLAGS:=nonshared
@@ -24,7 +24,6 @@ define Package/admswconfig
   CATEGORY:=Utilities
   TITLE:=ADM5120 Switch configuration tool
   DEPENDS:=@TARGET_adm5120
-  URL:=http://sharon.esrac.ele.tue.nl/users/pe1rxq/linux-adm/admswconfig/
   MAINTAINER:=Florian Fainelli <florian@openwrt.org>
 endef