build: remove files previously used with XTOS #20835

Job	Run time
manifest-check	47s
LP64-WIP	3m 25s
build-windows (tgl tgl-h)	6m 30s
build-windows (mtl lnl)	7m 46s
build-windows (-d, lnl)	5m 43s
build-windows (imx8 imx8x imx8m imx8ulp)	8m 55s
build-linux (mnfst, ptl)	4m 5s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 17s
build-linux (mnfst, tgl tgl-h)	4m 54s
build-windows (ptl)	5m 38s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 58s
build-linux (-d, mnfst, lnl)	4m 18s
build-linux (zmain, mtl lnl)	5m 10s
build-linux (zmain, ptl)	4m 3s
build-linux (mnfst, mtl lnl)	5m 36s
build-linux (zmain, tgl tgl-h)	5m 8s
build-linux (mnfst, --all)	15m 22s
compare-linux-win	1m 10s
	1h 40m 45s

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