ACPI fixes for 5.11-rc3 - Drop two local variables that are never read and the code updating their values from the x86 suspend-to-idle code (Rafael Wysocki). - Add empty stub of an ACPI helper function to avoid build issues when CONFIG_ACPI is not set (Shawn Guo). - Remove confusing text regarding modules from Kconfig entries that correspond to non-modular code (Peter Robinson).