don't need versioneer in docker image anymore

Author: Charlotte Godley

Dockerfile

@@ -10,7 +10,6 @@ COPY README.md ./dsbuild
 COPY LICENSE ./dsbuild
 COPY setup.cfg ./dsbuild
 COPY MANIFEST.in ./dsbuild
-COPY versioneer.py ./dsbuild
 
 RUN cd dsbuild ; python3 setup.py install
 #RUN rm -rf dsbuild