Clean up Dockerfile: remove unused deps, comments, and redundant lines

Dockerfile

@@ -25,7 +25,7 @@ ARG WGRIB2_VERSION=3.6.1
 
 RUN apt-get update \
   && apt-get install -y --no-install-recommends \
-     build-essential gfortran cmake wget ca-certificates git \
+     build-essential gfortran cmake wget ca-certificates \
      zlib1g-dev libaec-dev libpng-dev \
   && rm -rf /var/lib/apt/lists/*
 
@@ -99,31 +99,19 @@ RUN apt-get update \
      libgfortran5 libaec0 zlib1g libpng16-16t64 \
   && rm -rf /var/lib/apt/lists/*
 
-# Set the locale
-RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
-  && locale-gen
+RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
 
 ENV LANG=en_US.UTF-8
 ENV LANGUAGE=en_US:en
 ENV LC_ALL=en_US.UTF-8
+ENV MIX_ENV="prod"
 
 WORKDIR "/app"
 RUN chown nobody /app
 
-# set runner ENV
-ENV MIX_ENV="prod"
-
-# Copy wgrib2 binary from the build stage
 COPY --from=wgrib2-builder /usr/local/bin/wgrib2 /usr/local/bin/wgrib2
-
-# Only copy the final release from the build stage
 COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/microwaveprop ./
 
 USER nobody
 
-# If using an environment that doesn't automatically reap zombie processes, it is
-# advised to add an init process such as tini via `apt-get install`
-# above and adding an entrypoint. See https://github.com/krallin/tini for details
-# ENTRYPOINT ["/tini", "--"]
-
 CMD ["/app/bin/server"]