fix: removed duplicate DataService

Author: arnoweiss

artifacts/src/main/resources/context/dspace.jsonld

@@ -438,17 +438,6 @@
         }
       }
     },
-    "DataService": {
-      "@id":"dspace:CatalogService",
-      "@context": {
-        "id": "@id",
-        "type": "@type",
-        "serviceEndpoint": {
-          "@id": "https://www.w3.org/ns/did#serviceEndpoint",
-          "@type": "@id"
-        }
-      }
-    },
     "ACCEPTED": "dspace:ACCEPTED",
     "FINALIZED": "dspace:FINALIZED",
     "REQUESTED": "dspace:REQUESTED",