[Docker] remove entrypoint for CI docker

docker/Dockerfile.ci

@@ -81,4 +81,3 @@ RUN echo "source \$VIVADO_PATH/settings64.sh" >> /root/.bashrc
 RUN echo "PS1='\[\033[1;36m\]\u\[\033[1;31m\]@\[\033[1;32m\]\h:\[\033[1;35m\]\w\[\033[1;31m\]\$\[\033[0m\] '" >>  /root/.bashrc
 
 WORKDIR /workspace/finn
-ENTRYPOINT ["bash"]