global: Avoid warnings about unused variables #20498

Job	Run time
LP64-WIP	4m 5s
manifest-check	49s
build-windows (mtl lnl)	8m 5s
build-windows (tgl tgl-h)	7m 39s
build-windows (ptl)	6m 31s
build-windows (imx8 imx8x imx8m imx8ulp)	8m 54s
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	6m 42s
build-linux (mnfst, ptl)	4m 48s
build-linux (mnfst, mtl lnl)	6m 13s
build-windows (-d, lnl)	6m 20s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	6m 38s
build-linux (-d, mnfst, lnl)	4m 39s
build-linux (mnfst, --all)	14m 56s
build-linux (zmain, mtl lnl)	5m 44s
build-linux (zmain, tgl tgl-h)	5m 34s
build-linux (mnfst, tgl tgl-h)	6m 3s
build-linux (zmain, ptl)	4m 32s
compare-linux-win	33s
	1h 48m 45s

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