deps: openssl-1.1.1b no longer packages .gitignore

Since its not packaged, we don't have to delete it, and the Makefile
and update can become a (tiny) bit simpler.

PR-URL: https://github.com/nodejs/node/pull/26327


Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>