Update Dockerfile

utils and assets not used in this example hence removed

examples/canonical-metrics/Dockerfile

@@ -1,16 +1,10 @@
 FROM python:3.10-bullseye
-
 RUN mkdir /app
-RUN mkdir /app/assets
-RUN mkdir /app/utils
 COPY *.py /app/
 COPY requirements.txt /app/
-copy assets/* /app/assets/
-copy utils/* /app/utils/
-
 WORKDIR /app
 RUN pip3 install -r requirements.txt
 
 EXPOSE 7860
 
-CMD ["python3", "server.py"]
+CMD ["python3", "server.py"]