simplify current local contract definitions

scripts/validate-local-contracts.py

@@ -390,7 +390,7 @@ v4_schema_paths = {
     name: ROOT / f"docs/contracts/{name}-v0.4-proposal.schema.json"
     for name in ("task-discovery", "task-control", "call-execute")
 }
-v4_registry = registry.with_resource(event_schema["$id"], Resource.from_contents(event_schema))
+v4_registry = registry
 v4_examples = {name: sorted(EXAMPLES.glob(f"{name}-*-v0.4.json")) for name in v4_schema_paths}
 v4_positive = v4_negative = 0
 for name, schema_path in v4_schema_paths.items():
@@ -427,7 +427,6 @@ v4_artifacts = v4_manifest.get("artifacts", [])
 required_v4 = {
     *(p.relative_to(ROOT).as_posix() for p in v4_schema_paths.values()),
     *(p.relative_to(ROOT).as_posix() for examples in v4_examples.values() for p in examples),
-    event_schema_path.relative_to(ROOT).as_posix(),
     "contracts/upstream/v1/mq.schema.json",
 }
 v4_paths = [entry.get("path") for entry in v4_artifacts if isinstance(entry, dict)]