Request #46128 has been Accepted by muflone [1]:
[Autogenerated] Accepted deletion for glew2.0.
[1] https://aur.archlinux.org/account/muflone/
Also source checksum verification reported failing in 2021 (last comment), and
it still fails. Seems this is no longer an acute need to be resolved by any
user.
Btw this release, v2.0 was published in 2016. [a]
AUR has a glew-2.1 package. That version is actually API-compatible with v2.0,
but
MarsSeed [1] filed a deletion request for glew2.0 [2]:
Unneeded legacy variant of repo's glew, does not set any provides or
conflicts. Nothing depends on it.
[1] https://aur.archlinux.org/account/MarsSeed/
[2] https://aur.archlinux.org/pkgbase/glew2.0/