Cleanup Kokkos::{Impl:: -> }::SpaceAccesibility<Space, MemorySpace> (!254) · Merge requests · Arndt, Daniel / ArborX

Created by: dalg24

SpaceAccesibilty has been promoted to the Kokkos :: namespace a while ago and we require version 3.0

It is only in Impl:: for backward compatibility, we do not need to wait for Kokkos to deprecate it to act.

Cleanup Kokkos::{Impl:: -> }::SpaceAccesibility<Space, MemorySpace>