test: Remove example_dir, fixtures_dir

Author: tony

src/libtmux/test/__init__.py

@@ -34,8 +34,3 @@
         from typing import Self
     else:
         from typing_extensions import Self
-
-
-current_dir = pathlib.Path(__file__)
-example_dir = current_dir.parent / "examples"
-fixtures_dir = current_dir / "fixtures"