remove call to old XEP-0136 function

gajim/common/stanza_session.py

@@ -292,9 +292,6 @@ class ArchivingStanzaSession(StanzaSession):
         if self.control:
             self.control.print_archiving_session_details()
 
-    def stop_archiving_for_session(self):
-        self.conn.stop_archiving_session(self.thread_id)
-
 
 class EncryptedStanzaSession(ArchivingStanzaSession):
     """
@@ -1063,8 +1060,6 @@ class EncryptedStanzaSession(ArchivingStanzaSession):
         if self.control:
             self.control.print_esession_details()
 
-        self.stop_archiving_for_session()
-
     def final_steps_alice(self, form):
         srs = b''
         srses = secrets.secrets().retained_secrets(self.conn.name,
@@ -1105,8 +1100,6 @@ class EncryptedStanzaSession(ArchivingStanzaSession):
         if self.control:
             self.control.print_esession_details()
 
-        self.stop_archiving_for_session()
-
     def do_retained_secret(self, k, old_srs):
         """
         Calculate the new retained secret. determine if the user needs to check