cpufeatures: remove `#[inline(never)]` workaround for CPUID intrinsics #1298

Job	Run time
windows (x86_64-pc-windows-gnu, 1.85.0)	29s
windows (x86_64-pc-windows-gnu, stable)	46s
build-only	19s
cross (aarch64-unknown-linux-gnu, 1.85.0)	35s
cross (aarch64-unknown-linux-gnu, stable)	35s
macos (1.85.0)	20s
macos (stable)	19s
linux (i686-unknown-linux-gnu, 1.85.0, sudo apt update && sudo apt install gcc-multilib)	24s
linux (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	32s
linux (x86_64-unknown-linux-gnu, 1.85.0)	16s
linux (x86_64-unknown-linux-gnu, stable)	16s
minimal-versions / minimal-versions	23s
	5m 14s

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