Clean up tests dir

Author: dacharyc

mflix/server/python-fastapi/tests/README.md

@@ -41,7 +41,7 @@ The test suite is organized into three categories:
 
 1. **For all tests:**
    ```bash
-   cd server/python-fastapi
+   cd server/
    source .venv/bin/activate  # or `.venv\Scripts\activate` on Windows
    ```
 

mflix/server/python-fastapi/tests/test_movie_routes.py

@@ -9,7 +9,6 @@
 import pytest
 from unittest.mock import AsyncMock, MagicMock, patch
 from bson import ObjectId
-from bson.errors import InvalidId
 
 from src.models.models import CreateMovieRequest, UpdateMovieRequest