Temporarily remove mxnet

Author: nerdcha

Dockerfile

@@ -89,8 +89,3 @@ RUN apt-get -y install libgeos-dev && \
     # hopefully installing ibis-framework
 RUN pip install ibis-framework
 
-    # mxnet (has OpenCV as a dependency)
-RUN apt-get install -y libblas-dev && \
-    cd /usr/local/src && git clone --recursive https://github.com/dmlc/mxnet && \
-    cd mxnet && make
-