postfix: remove unneeded examples from config

postfix/templates/master.cf.j2

@@ -100,9 +100,6 @@ postlog   unix-dgram n  -       n       -       1       postlogd
 # and other message envelope options.
 # ====================================================================
 
-# maildrop. See the Postfix MAILDROP_README file for details.
-# Also specify in main.cf: maildrop_destination_recipient_limit=1
-
 {% if postfix_verify_spf %}
 policy-spf unix -       n       n       -       0       spawn
   user=nobody argv=/usr/bin/policyd-spf
@@ -122,19 +119,6 @@ spamassassin	unix -     n       n       -       -       pipe
   user=debian-spamd argv=/usr/bin/spamc -f -e /usr/sbin/sendmail -oi -f ${sender} ${recipient}
 {% endif %}
 
-#maildrop  unix  -       n       n       -       -       pipe
-#  flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient}
-#uucp      unix  -       n       n       -       -       pipe
-#  flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient)
-#ifmail    unix  -       n       n       -       -       pipe
-#  flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient)
-#bsmtp     unix  -       n       n       -       -       pipe
-#  flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient
-#scalemail-backend unix	-	n	n	-	2	pipe
-#  flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension}
-#mailman   unix  -       n       n       -       -       pipe
-#  flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py
-#  ${nexthop} ${user}
 {% if postfix_fsmpi|default(false) and ansible_hostname == "lists" %}
 mailman   unix  -       n       n       -       -       pipe
   flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py