lib: remove internalBinding('config').pendingDeprecation

Instead use
`require('internal/options').getOptionValue('--pending-deprecation')`

PR-URL: https://github.com/nodejs/node/pull/24962


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>