acorn_roasted: remove duplicate entry for itype acorn_roasted

There are two acorn_roasted entries in this file. The one removed is
defined prior to the itype it copies from (acorns). The remaining entry
is immediately following the definition of acorns, and can be loaded
without being deferred.

data/json/items/comestibles/nuts.json

@@ -261,18 +261,6 @@
     "flags": [ "EATEN_HOT", "EDIBLE_FROZEN" ],
     "fun": 1
   },
-  {
-    "type": "COMESTIBLE",
-    "id": "acorn_roasted",
-    "name": "handful of roasted acorns",
-    "name_plural": "handfuls of roasted acorns",
-    "copy-from": "acorns",
-    "healthy": 1,
-    "description": "A handful of roasted nuts from a oak tree.",
-    "price": 90,
-    "flags": [ "EATEN_HOT", "EDIBLE_FROZEN" ],
-    "fun": 1
-  },
   {
     "type": "COMESTIBLE",
     "id": "hazelnut_unshelled",