Revert "Install httpgd 2.0.2 from archive"

This reverts commit adfad4c8.

base/latest.Dockerfile

@@ -419,14 +419,6 @@ RUN apt-get update \
       >> $(which radian)_; \
     echo "$(which radian) \"\${@}\"" >> $(which radian)_; \
   fi \
-  ## Install httpgd
-  ## Archived on 2025-02-14 as requires archived package 'unigd'.
-  && install2.r --error --skipinstalled -n $NCPUS \
-    unigd \
-    AsioHeaders \
-  && curl -sLO https://cran.r-project.org/src/contrib/Archive/httpgd/httpgd_2.0.2.tar.gz \
-  && R CMD INSTALL httpgd_2.0.2.tar.gz \
-  && rm httpgd_2.0.2.tar.gz \
   ## Install the R kernel for Jupyter, languageserver and httpgd
   && install2.r --error --deps TRUE --skipinstalled -n $NCPUS \
     IRkernel \