radeonsi/ci: don't build GLES CTS separately

GLES tests are available in GL CTS too.

Delete the build_es directly manually.

Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36382>
2 files changed