message: remove jupyterlab from Dockerfile.train
diff: @@ -122,7 +122,7 @@ RUN mkdir -p /var/tmp && cd /var/tmp && git clone --depth=1 https://github.com/f
  rm -rf /var/tmp/rocksdb
  ENV CPATH=/usr/local/include:$CPATH
  -RUN pip3 install ortools sklearn jupyterlab onnx onnxruntime && \
  +RUN pip3 install ortools sklearn onnx onnxruntime && \
  pip3 cache purge
  RUN ln -s /usr/lib/x86_64-linux-gnu/libibverbs.so.1.11.32.1 /usr/lib/x86_64-linux-gnu/libibverbs.so
  