Remove workaround for macOS OpenSSL build breakage

We should revert the workaround for #40358 (closed) at some point. It seems we can do so with the switch to the 11.0 SDK as we plan to do in #40158 (closed).

mentioned in issue #40158 (closed)

mentioned in merge request !380 (merged)

closed with commit 9f7492f0

mentioned in commit 76bba95d