ci: Stop disabling filter hacks for llvmpipe.

ci: Stop disabling filter hacks for llvmpipe.

Now that we've disabled brilinear and have per-pixel cube derivatives, we
can use the same rendering paths that end users will see.

In a few cases, we switch to the no_quad_lod option instead, because
otherwise we get a piglit failure.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12125>