Alloy: remove repo

PL/I submission showed that Alloy (which used to work) now shows up as 404; since that's not PL/I's fault, experimenting with fixing it here, and if it works, I'll add the change to the PL/I submission (to avoid them having to rebase)

Author: pryrt

udl-list.json

@@ -80,7 +80,7 @@
             "id-name": "Alloy_by-lausdahl",
             "display-name": "Alloy",
             "version": "Thu, 27 Dec 2012 05:53:49 GMT",
-            "repository": "http://lausdahl.users.sourceforge.net/Notepadpp_Alloy_language_style.zip",
+            "repository": "",
             "description": "Alloy",
             "author": "lausdahl <mailto:lausdahl@users.sourceforge.net>"
         },