Applied suggestion from code review

Author: h-chmeruk

tests/test_copier.py

@@ -11,20 +11,13 @@ def test_project_folder(default_project):
     "LICENSE",
     "CONTRIBUTING.rst",
     "pyproject.toml",
+    "my_project/__init__.py",
+    "my_project/my_project.py",
 ])
 def test_generated_file_exists(default_project, file_name):
     assert default_project.project_dir.joinpath(file_name).exists()
 
 
-@pytest.mark.parametrize("file_name", [
-    "__init__.py",
-    "my_project.py",
-])
-def test_generated_file_in_project_slug_exists(default_project, file_name):
-    assert default_project.project_dir.joinpath('my_project').joinpath(
-                                                        file_name).exists()
-
-
 @pytest.mark.parametrize("desired", [
     "\nmy_project_description\n",
     "pip install my_project",