Update clippy_lints/src/format_args.rs

Co-authored-by: Cameron Steffen <cam.steffen94@gmail.com>

Author: smoelius

clippy_lints/src/format_args.rs

@@ -111,7 +111,6 @@ fn check_format_in_format_args(cx: &LateContext<'_>, call_site: Span, name: Symb
 
 fn check_to_string_in_format_args<'tcx>(
     cx: &LateContext<'tcx>,
-    _call_site: Span,
     name: Symbol,
     arg: &FormatArgsArg<'_, 'tcx>,
 ) {