New review comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/36395#discussion_r836739922

Comment:
There's no need for a build option. Without a compelling need for mbedtls, you should probably just favor OpenSSL since it will generally already be present on users' systems. If there is a good case to be made for mbedtls, do that instead. Defer the build option until somebody explicitly needs something different than a sensible default.