Removed explicit "user login failed" stuff from SSH auth.

This would result in the lasterr string getting polluted with password
failure messages if the SSH auth is not the last auth method tried. Now
only actual failures will be reported.

AuthMethod/SSH.pm

@@ -114,15 +114,9 @@ sub authenticate {
         # Did the user log in?
         } elsif($resp =~ /Welcome/ || $resp =~ /Last\s*login/s) {
             return 1;
-
-        # something broke, just not /hideously/
-        } else {
-            # Fix the simple 'Password:' prompt response...
-            $resp =~ s/^Password:$/Incorrect username or password./;
-
-            $auth -> {"lasterr"} .= "ssh login to ".$self -> {"server"}." failed. Response was: $resp\n";
         }
 
+        # Note that password failures ARE NOT reported - just this auth method fails.
         return 0;
     }