debugging runtime link issues on arm64

ext/central-controller-docker/Dockerfile.conda

@@ -8,8 +8,7 @@ LABEL maintainer="ZeroTier Inc."
 
 ADD environment.yml /tmp/environment.yml
 
-RUN conda env create -f /tmp/environment.yml && \
-    conda clean -a -y
+RUN conda env create -f /tmp/environment.yml
 
 COPY --from=go_base /go/bin/migrate /usr/local/bin/migrate
 COPY ext/central-controller-docker/migrations /migrations