arch/x86: Remove acpi_fail_wakeup() and cbmem_fail_resume()

Unused since commit d46b8d5.

Change-Id: If0f1e0381dd7698f842dc1288ff222a4d5d4783c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35389
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/lib/cbmem_common.c

@@ -32,7 +32,3 @@ void cbmem_run_init_hooks(int is_recovery)
 		init_hook_ptr++;
 	}
 }
-
-void __weak cbmem_fail_resume(void)
-{
-}