fix(client): avoid removing abort listener too early

Author: stainless-app[bot]

src/client.ts

@@ -665,7 +665,6 @@ export class Kernel {
       return await this.fetch.call(undefined, url, fetchOptions);
     } finally {
       clearTimeout(timeout);
-      if (signal) signal.removeEventListener('abort', abort);
     }
   }