Revert "perf: sync up x86/.../cpufeatures.h"

This reverts commit f09a7b0e

Daniel writes:
	Because the modification in this patch actually belongs to
	e63650840e8b ("x86/fpu: Finish excising 'eagerfpu'")

Reported-by: Daniel Sangorrin <daniel.sangorrin@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>