since we don't build the rpm/deb packages from source tarball anymore,
instead we build the rpm/deb packages from precompiled relocatable
package. there is no need to keep git-archive-all in the repo. in this
change, the git-archive-all script and its license file are removed.
they were added for building rpm packages from source tarball in
f87add31a7.
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closes#13372
4670ba90e5