remove reinstalling python (per comment)

Author: kevinjqliu

.github/workflows/rc.yml

@@ -232,7 +232,6 @@ jobs:
           for python_package in $(brew list | grep python@); do
             brew install --overwrite ${python_package}
           done
-          brew install --overwrite python
 
           if [ "$(uname -m)" = "arm64" ]; then
             # pkg-config formula is deprecated but it's still installed