[xla:cpu] Always inline thread local computations into host kernel function
[xla:cpu] Always inline thread local computations into host kernel function

Reverts changelist 641225077

FUTURE_COPYBARA_INTEGRATE_REVIEW=https://github.com/openxla/xla/pull/13062 from philipphack:u_fp8_windowed_einsum_xla 3ea415d65e47087bb077fa2b13e34c82a4dae87b
