Fix docker build (#570)

Signed-off-by: Sachidanand Alle <[email protected]>

Author: SachidanandAlle

Dockerfile

@@ -23,7 +23,6 @@ LABEL maintainer="[email protected]"
 ADD . /opt/monailabel/
 RUN apt update -y && apt install npm -y && npm install --global yarn
 RUN python -m pip install --upgrade --no-cache-dir pip setuptools wheel twine \
-    && export BUILD_OHIF=true \
     && cd /opt/monailabel \
     && python setup.py sdist