remove duplicate allow-dead-code annotation

Michael-J-Ward · Michael-J-Ward · commit e519c1bfc7fe · 2024-06-14T10:11:30.000-05:00
diff --git a/src/expr/signature.rs b/src/expr/signature.rs
@@ -20,7 +20,6 @@ use pyo3::prelude::*;
 
 #[allow(dead_code)]
 #[pyclass(name = "Signature", module = "datafusion.expr", subclass)]
-#[allow(dead_code)]
 #[derive(Clone)]
 pub struct PySignature {
     type_signature: TypeSignature,
