Update dovecot.conf

install/ubuntu/dovecot.conf

@@ -2,27 +2,3 @@ protocols = imap pop3
 listen = *, ::
 base_dir = /var/run/dovecot/
 !include conf.d/*.conf
-
-    namespace {
-        type = private
-        separator = /
-        prefix =
-        inbox = yes
-
-        mailbox Sent {
-            auto = subscribe
-            special_use = \Sent
-        }
-        mailbox Drafts {
-            auto = subscribe
-            special_use = \Drafts
-        }
-        mailbox Trash {
-            auto = subscribe
-            special_use = \Trash
-        }
-        mailbox Junk {
-            auto = subscribe
-            special_use = \Junk
-        }
-    }