remove unused header

chaojun-zhang · chaojun-zhang · commit 287e1497cbf6 · 2022-10-21T12:41:00.000+08:00
diff --git a/src/FunctionSignature.h b/src/FunctionSignature.h
@@ -19,7 +19,6 @@
 
 #pragma once
 
-#include "FunctionMapping.h"
 #include "Type.h"
 
 namespace io::substrait {
