Merge branches 'acpi-battery', 'acpi-button' and 'acpi-driver' into linux-next

* acpi-battery:
  ACPI: battery: Drop redundant checks from acpi_battery_remove()

* acpi-button:
  ACPI: button: Tweak acpi_button_remove()
  ACPI: button: Tweak system wakeup handling

* acpi-driver:
  ACPI: driver: Drop driver_data pointer clearing from two drivers
  ACPI: video: Clear driver_data pointer on remove