zephyr: pm_runtime: Remove outdated TODO comment #16931

Job	Run time
build-linux (mnfst, imx8 imx8x imx8m imx8ulp)	4m 53s
build-windows (imx8 imx8x imx8m imx8ulp)	7m 50s
build-linux (mnfst, mtl)	4m 23s
manifest-check	39s
build-windows (mtl)	5m 49s
LP64-WIP	3m 47s
build-windows (tgl tgl-h)	6m 35s
build-linux (mnfst, lnl)	4m 20s
build-windows (-d, mtl)	5m 47s
build-linux (mnfst, tgl tgl-h)	5m 38s
build-linux (zmain, imx8 imx8x imx8m imx8ulp)	5m 1s
build-linux (zmain, mtl)	3m 46s
build-linux (zmain, lnl)	3m 52s
build-linux (zmain, tgl tgl-h)	3m 35s
build-linux (-d, mnfst, mtl)	4m 31s
compare-linux-win	1m 24s
	1h 11m 50s

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