idle: remove cpu_idle() forward declarations

After all architectures were converted to the generic idle framework,
commit d190e8195b90 ("idle: Remove GENERIC_IDLE_LOOP config switch")
removed the last caller of cpu_idle().  The forward declarations in
header files were forgotten.

Signed-off-by: Geert Uytterhoeven <>
Cc: Thomas Gleixner <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
2 files changed