Update src/prompts.py

src/prompts.py

@@ -553,7 +553,7 @@ def build_init_prompt(query:str,
     )
 
 def build_query_understanding_prompt(
-    query: str, domain: str, history: list[dict],
+    query: str, domain: str,
     sql_schema_summary: str = "",
     kb_overview: str = "",
 ) -> str: