Update unused_enumerate_index.rs

Author: dnbln

clippy_lints/src/loops/unused_enumerate_index.rs

@@ -14,7 +14,7 @@ pub(super) fn check<'tcx>(cx: &LateContext<'tcx>, pat: &'tcx Pat<'_>, arg: &'tcx
         return;
     };
 
-    let ExprKind::MethodCall(method, self_arg, [], _) = arg.kind else {
+    let ExprKind::MethodCall(_method, self_arg, [], _) = arg.kind else {
         return;
     };