OwLouvain: Don't catch programming errors

Author: pavlin-policar

Orange/widgets/unsupervised/owlouvainclustering.py

@@ -283,13 +283,9 @@ def __on_done(self, future):
         task.deleteLater()
 
         self.__set_state_ready()
-        try:
-            result = future.result()
-        except Exception as err:  # pylint: disable=broad-except
-            self.Error.general_error(str(err), exc_info=True)
-            self.info_label.setText("An error occurred during clustering.")
-        else:
-            self.__set_results(result)
+
+        result = future.result()
+        self.__set_results(result)
 
     @Slot(str)
     def setStatusMessage(self, text):