Revert check for SMTP/email header canonical hostname equivalence.

Signed-off-by: Isis Lovecruft <isis@torproject.org>

For now, we need to revert this check to get the email distributor to
function. We should look into this issue in order to get BridgeDB in a
state where instances of it are runnable by other organisations to hand
out their own bridges. [OTHER_ORG]

Fixing this is essential for #12086.

lib/bridgedb/email/autoresponder.py

@@ -631,12 +631,12 @@ class SMTPAutoresponder(smtp.SMTPClient):
 
         # The canonical domains from the SMTP ``MAIL FROM:`` and the email
         # ``From:`` header should match:
-        if self.incoming.canonicalFromSMTP != self.incoming.canonicalFromEmail:
-            logging.error("SMTP/Email canonical domain mismatch!")
-            logging.debug("Canonical domain mismatch: %s != %s"
-                          % (self.incoming.canonicalFromSMTP,
-                             self.incoming.canonicalFromEmail))
-            return False
+        #if self.incoming.canonicalFromSMTP != self.incoming.canonicalFromEmail:
+        #    logging.error("SMTP/Email canonical domain mismatch!")
+        #    logging.debug("Canonical domain mismatch: %s != %s"
+        #                  % (self.incoming.canonicalFromSMTP,
+        #                     self.incoming.canonicalFromEmail))
+        #    return False
 
         self.incoming.domainRules = self.incoming.context.domainRules.get(
             self.incoming.canonicalFromEmail, list())