x86/smp: Remove a non-existent function declaration

x86_idle_thread_init() does not exist anywhere. Remove its declaration
from the header.

Signed-off-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20230727180533.3119660-3-sohil.mehta@intel.com
This commit is contained in:
Sohil Mehta 2023-07-27 18:05:32 +00:00 • committed by Thomas Gleixner
commit 54bfd02bbf