src: remove redundant return

PR-URL: https://github.com/nodejs/node/pull/28189
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

src/tls_wrap.cc

@@ -610,8 +610,6 @@ void TLSWrap::ClearIn() {
     // case because no further writes would succeed anyway.
     pending_cleartext_input_ = std::move(data);
   }
-
-  return;
 }