[Dovecot] Revert autocrypt sieve before, fixes DeltaChat and closes #4230

data/conf/dovecot/global_sieve_before

@@ -1,10 +1,9 @@
 # global_sieve_before script
 # global_sieve_before -> user sieve_before (mailcow UI) -> user sieve_after (mailcow UI) -> global_sieve_after
 
-require ["imap4flags", "mailbox", "fileinto"];
+require ["mailbox", "fileinto"];
 
-if allof(header :contains ["Chat-Version"] [""],
-  header :contains ["Auto-Submitted"] ["auto-replied"]) {
+if header :contains ["Chat-Version"] [""] {
   if mailboxexists "DeltaChat" {
     fileinto "DeltaChat";
   } else {
@@ -12,9 +11,3 @@ if allof(header :contains ["Chat-Version"] [""],
   }
   stop;
 }
-
-if allof(header :contains ["Chat-Version"] [""],
-  header :contains ["Autocrypt"] [""]) {
-  setflag "\\seen";
-  stop;
-}