Don't display Mailchimp fields for Smart Groups.
Don't display Mailchimp fields for Smart Groups.

We're not currently supporting Smart Groups, so we're removing the fields
from the Group add/edit page if the group is a Smart Group.

giant-rabbit/com.giantrabbit.civimailchimp,giant-rabbit/com.giantrabbit.civimailchimp,giant-rabbit/com.giantrabbit.civimailchimp