dovecot: the imap_sieve plugin doesn't work anymore in nixos. need a fast solution.

nixos-mailserver/dovecot.nix

@@ -70,7 +70,7 @@ let
     }
 
     protocol imap {
-      mail_plugins = $mail_plugins imap_sieve
+      mail_plugins = $mail_plugins
     }
     imap_idle_notify_interval = 29 mins
 
@@ -99,22 +99,6 @@ let
       }
       prefix =
     }
-
-    plugin {
-      sieve_after = ${(pkgs.callPackage ./sieve-after.nix {}) }
-      sieve_plugins = sieve_imapsieve sieve_extprograms
-      # From elsewhere to Spam folder
-      imapsieve_mailbox1_name = Junk
-      imapsieve_mailbox1_causes = COPY
-      imapsieve_mailbox1_before = file:${(pkgs.callPackage ./sieve-report-spam-ham.nix {})}/report-spam.sieve
-      # From Spam folder to elsewhere
-      imapsieve_mailbox2_name = *
-      imapsieve_mailbox2_from = Junk
-      imapsieve_mailbox2_causes = COPY
-      imapsieve_mailbox2_before = file:${(pkgs.callPackage ./sieve-report-spam-ham.nix {})}/report-ham.sieve
-      sieve_pipe_bin_dir = ${(pkgs.callPackage ./sieve-pipe-bin-dir.nix {})}
-      sieve_global_extensions = +vnd.dovecot.pipe +vnd.dovecot.environment
-    }
   '';
 in
 {