stream: remove empty block

PR-URL: nodejs#41831
Backport-PR-URL: nodejs#42160
Refs: https://eslint.org/docs/rules/no-empty
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

lib/internal/webstreams/readablestream.js

@@ -1358,7 +1358,7 @@ function readableStreamPipeTo(
 
   async function run() {
     // Run until step resolves as true
-    while (!await step()) {}
+    while (!await step());
   }
 
   if (signal !== undefined) {