Revert "aria2: enable bittorrent and metalink by default"

As per maintainer's request.

Signed-off-by: Steven Barth <steven@midlink.org>

net/aria2/Config.in

@@ -19,10 +19,10 @@ endchoice
 config ARIA2_BITTORRENT
 	bool "Enable bittorrent support"
 	depends on ARIA2_OPENSSL
-	default y
+	default n
 
 config ARIA2_METALINK
 	bool "Enable metalink support"
-	default y
+	default N
 
 endmenu