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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def remove_selected_classification(self):
 """Remove selected item on hazard class form."""

        removed_classes = self.hazard_class_form.selectedItems()
        current_item = self.hazard_class_form.currentItem()
        removed_index = self.hazard_class_form.indexFromItem(current_item)
        del self.classification[removed_index.row()]
        for item in removed_classes:
            self.hazard_class_form.takeItem(
                self.hazard_class_form.row(item))