drop stale account settings (#569)

Author: Gpetrak

.env.sample

@@ -155,8 +155,6 @@ ACCOUNT_EMAIL_REQUIRED=True
 ACCOUNT_APPROVAL_REQUIRED=False
 ACCOUNT_CONFIRM_EMAIL_ON_GET=False
 ACCOUNT_EMAIL_VERIFICATION=none
-ACCOUNT_EMAIL_CONFIRMATION_EMAIL=False
-ACCOUNT_EMAIL_CONFIRMATION_REQUIRED=False
 ACCOUNT_AUTHENTICATION_METHOD=username_email
 AUTO_ASSIGN_REGISTERED_MEMBERS_TO_REGISTERED_MEMBERS_GROUP_NAME=True
 

.override_dev_env.sample

@@ -62,8 +62,6 @@ export ACCOUNT_EMAIL_REQUIRED=True
 export ACCOUNT_APPROVAL_REQUIRED=False
 export ACCOUNT_CONFIRM_EMAIL_ON_GET=False
 export ACCOUNT_EMAIL_VERIFICATION=none
-export ACCOUNT_EMAIL_CONFIRMATION_EMAIL=False
-export ACCOUNT_EMAIL_CONFIRMATION_REQUIRED=False
 export ACCOUNT_AUTHENTICATION_METHOD=username_email
 
 export OAUTH2_API_KEY=