[Bug target/119834] [15 regression] Compiling harfbuzz 11.0.1 with gcc 15 20250413 fails on s390x

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119834

--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Use xz -9e to compress it afterwards.  And remove the vartrack one, there is
nothing interesting in there for this PR.