[core] node: Remove redundant backslash

Author: gregoire-dl

meshroom/core/node.py

@@ -1715,7 +1715,7 @@ def _hasDisplayableShape(self):
         Note: These attributes can be loaded in the the ShapeViewer / ShapeEditor.
         False otherwise.
         """
-        return next((attr for attr in self._attributes if attr.hasDisplayableShape or \
+        return next((attr for attr in self._attributes if attr.hasDisplayableShape or
                      attr.desc.semantic == "shapeFile"), None) is not None