Mac GHA: Remove workarounds that are no longer needed (#323)

.github/workflows/ci.yml

@@ -34,38 +34,6 @@ jobs:
           # Remove the symlinks that cause issues.
           find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete
           sudo rm -rf /Library/Frameworks/Python.framework/
-          #
-          ######################################################################
-          # For brew formulas that have issues during `brew upgrade` due to
-          # symlinks already existing, we use the strategy:
-          #     brew list <formula> && (brew unlink ... )
-          # The `brew list <formula>` will error if it is not installed.  When
-          # the logs say something like "No such keg: /some/path/<formula>"
-          # that means the band-aid can be removed from DEE CI.
-          ######################################################################
-          # On 2023-02-24 `brew upgrade` resulted in a failure linking tcl-tk.
-          brew list tcl-tk && brew unlink tcl-tk
-          #
-          # On 2023-04-06 `brew upgrade` resulted in a failure upgrading `go`.
-          brew list go && ( \
-            brew unlink go && \
-            rm -f /usr/local/bin/go && \
-            rm -f /usr/local/bin/gofmt \
-          )
-          #
-          # On 2023-09-25 there were issues upgrading node@18 from 18.17.1 to
-          # 18.18.0, caused by `brew upgrade`.
-          brew list node@18 && ( \
-            brew unlink node@18 && \
-            rm -rf /usr/local/lib/node_modules/ \
-          )
-          ######################################################################
-          # Run upgrades now to fail-fast (setup scripts do this anyway).
-          ######################################################################
-          brew update && brew upgrade
-          # On 2023-02-16 the pip3.11 symlink was mysteriously missing.
-          brew unlink [email protected] && brew link [email protected]
-          pip3.11 --version
       - name: setup
         run: ./drake_cmake_installed/setup/mac/install_prereqs
         shell: zsh -efuo pipefail {0}