Final cleanup: Remove test install command

Dockerfile

@@ -2,6 +2,6 @@ FROM python:3.11-slim
 WORKDIR /app
 COPY requirements.txt ./requirements.txt
 RUN pip install --no-cache-dir --index-url https://pypi.org/simple/ -r requirements.txt
-RUN pip install pandas_ta
+
 COPY . .
 CMD ["streamlit", "run", "app.py", "--server.port=7860"]