Fix express parser for simple types that redefine aggregates of entities

src/ifcexpressparser/nodes.py

@@ -145,13 +145,6 @@ class DerivedAttribute(Node):
         return str(self.name)
 
 
-class BinaryType(Node):
-    def init(self):
-        pass
-    def __repr__(self):
-        return "binary"
-
-
 class BoundSpecification(Node):
     lower = property(lambda self: self.tokens[1])
     upper = property(lambda self: self.tokens[3])