fix: resolve cherry-pick conflicts

Removes the two stray files (bootstrap.sh and authorization_selector_collision/expected_error)
that AztecProtocol#23061 deleted as part of dropping the noir-contracts-comp-failures
crate. Both had been modified on v4-next-staging, which created the
rename/delete conflicts; the entire old crate is gone in AztecProtocol#23061's
direction.

Author: AztecBot