Data type converter: Remove unneeded cursor kwarg to conn.cursor

src/crate/client/connection.py

@@ -130,7 +130,7 @@ def __init__(self,
         self.lowest_server_version = self._lowest_server_version()
         self._closed = False
 
-    def cursor(self, cursor=None, **kwargs) -> Cursor:
+    def cursor(self, **kwargs) -> Cursor:
         """
         Return a new Cursor Object using the connection.
         """