Remove MUC workaround as new poezio is released

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

poezio_omemo/__init__.py

@@ -128,15 +128,6 @@ class Plugin(E2EEPlugin):
             self.display_error('Unable to decrypt the message.')
             return None
 
-        # XXX: This is only needed to workaround a bug in poezio (fixed in
-        # 00a91774) that makes it not give us realjids. Remove when there is a
-        # poezio release including it.
-        # The realjid of the participant needs to be retrieved in a MUC.
-        if isinstance(tab, MucTab):
-            user = tab.get_user_by_name(jid.resource)
-            if user is not None and user.jid != JID(''):
-                jid = user.jid
-
         body = None
         try:
             encrypted = message['omemo_encrypted']