lib: remove duplicate require calls in tls.js

This commit removes the duplicate require calls of the _tls_common and
_tls_wrap modules. The motivation for this being that even though the
modules are cached the additional calls are unnecessary.

PR-URL: https://github.com/nodejs/node/pull/20099


Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Richard Lau <riclau@uk.ibm.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Khaidi Chu <i@2333.moe>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>