RF: remove those two additional failregexes for the postfix

see comment
https://github.com/fail2ban/fail2ban/pull/804\#discussion_r17512426

config/filter.d/postfix.conf

@@ -15,8 +15,6 @@ _daemon = postfix/(submission/)?smtp(d|s)
 failregex = ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 554 5\.7\.1 .*$
             ^%(__prefix_line)sNOQUEUE: reject: RCPT from \S+\[<HOST>\]: 450 4\.7\.1 : Helo command rejected: Host not found; from=<> to=<> proto=ESMTP helo= *$
             ^%(__prefix_line)sNOQUEUE: reject: VRFY from \S+\[<HOST>\]: 550 5\.1\.1 .*$
-            ^%(__prefix_line)swarning: Connection concurrency limit exceeded: \d+ from \S+\[<HOST>\] for service.*$
-            ^%(__prefix_line)slost connection after AUTH from \S+\[<HOST>\]$
             ^%(__prefix_line)simproper command pipelining after \S+ from [^[]*\[<HOST>\]:?$
 
 ignoreregex = 

fail2ban/tests/files/logs/postfix

@@ -20,9 +20,3 @@ Dec 25 02:35:54 platypus postfix/smtpd[9144]: improper command pipelining after
 
 # failJSON: { "time": "2004-12-18T02:05:46", "match": true , "host": "216.245.198.245" }
 Dec 18 02:05:46 platypus postfix/smtpd[16349]: improper command pipelining after NOOP from unknown[216.245.198.245]
-
-# failJSON: { "time": "2004-09-07T08:24:30", "match": true , "host": "83.110.98.15" }
-Sep  7 08:24:30 umkc postfix/smtpd[2282]: lost connection after AUTH from bba453913.alshamil.net.ae[83.110.98.15]
-
-# failJSON: { "time": "2004-09-05T12:45:53", "match": true , "host": "213.123.185.20" }
-Sep  5 12:45:53 umkc postfix/smtpd[20286]: warning: Connection concurrency limit exceeded: 6 from mail.baileysbodybuilders.co.uk[213.123.185.20] for service smtp