Remove duckdb empty service check asset (#19832)

Author: iliakur

duckdb/assets/service_checks.json

@@ -36,9 +36,6 @@
         "check": "duckdb.memory_limit",
         "metadata_path": "metadata.csv"
       },
-      "service_checks": {
-        "metadata_path": "assets/service_checks.json"
-      },
       "process_signatures": [
         "duckdb"
       ]