To remove the configs:
conda install anaconda-clean anaconda-clean --yes
Once the configs are removed you can delete the anaconda install folder, which is usually under your home dir:
rm -rf ~/anaconda3
anaconda-clean --yes command creates a backup in your home directory of the format
~/.anaconda_backup/<timestamp>. Make sure to delete that one also.
EDIT (v5.2.0): Now if you want to clean all, you will also have to delete the two last lines added to your
.bash_profile. They look like:
# added by Anaconda3 5.2.0 installer export PATH="/Users/ody/anaconda3/bin:$PATH"