clippy fix

Author: LucaCappelletti94

tests/sqlparser_common.rs

@@ -18785,14 +18785,11 @@ fn parse_non_pg_dialects_keep_xml_names_as_regular_functions() {
     // On dialects that do NOT support XML expressions, `xmlconcat(...)`
     // should parse as a plain function call, not as `Expr::XmlConcat`.
     let dialects = all_dialects_except(|d| d.supports_xml_expressions());
-    for fn_name in ["xmlconcat"] {
-        let sql = format!("SELECT {fn_name}(1, 2)");
-        let select = dialects.verified_only_select(&sql);
-        match expr_from_projection(&select.projection[0]) {
-            Expr::Function(func) => {
-                assert_eq!(func.name.to_string(), fn_name);
-            }
-            other => panic!("Expected Expr::Function for {fn_name}, got: {other:?}"),
+    let select = dialects.verified_only_select("SELECT xmlconcat(1, 2)");
+    match expr_from_projection(&select.projection[0]) {
+        Expr::Function(func) => {
+            assert_eq!(func.name.to_string(), "xmlconcat");
         }
+        other => panic!("Expected Expr::Function, got: {other:?}"),
     }
 }