TODO Boost. Remove checks for C++17

The library already requires C++17.

e.g. https://gitlab.com/correaa/boost-multi/-/blob/master/include/multi/utility.hpp?ref_type=heads#L14

https://cpplang.slack.com/archives/C27KZLB0X/p1713336680615539?thread_ts=1713324690.600839&cid=C27KZLB0X

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information