Cleanup json schema validation (#819)

src/poetry/core/json/__init__.py

@@ -3,32 +3,19 @@
 import json
 
 from importlib.resources import files
-from pathlib import Path
-from typing import TYPE_CHECKING
 from typing import Any
 
 import fastjsonschema
 
 from fastjsonschema.exceptions import JsonSchemaException
 
 
-if TYPE_CHECKING:
-    from importlib.abc import Traversable
-
-
-SCHEMA_DIR = Path(__file__).parent / "schemas"
-
-
-def _get_schema_file(schema_name: str) -> Traversable:
-    return files(__package__) / "schemas" / f"{schema_name}.json"
-
-
 class ValidationError(ValueError):
     pass
 
 
 def validate_object(obj: dict[str, Any], schema_name: str) -> list[str]:
-    schema_file = _get_schema_file(schema_name)
+    schema_file = files(__package__) / "schemas" / f"{schema_name}.json"
 
     if not schema_file.is_file():
         raise ValueError(f"Schema {schema_name} does not exist.")