lib : remove all hyper code
configure: stop detecting hyper
docs: no more mention of hyper
tests: mo more special-handling of hyper builds
CI: no jobs using hyper
Closes#15120
The only binary-looking files that are accepted in the git repository
need to match the checksums in the sha256sum file
".github/scripts/binarycheck.sums".
This is done to make sure that no one has planted any hidden (encrypted)
potentially dangerous payload in the tree.
Closes#14333