ACPI: Remove unused OSC_PCI_NATIVE_HOTPLUG

OSC_PCI_NATIVE_HOTPLUG is completely unused, so remove it.  No functional
change.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

include/linux/acpi.h

@@ -345,9 +345,6 @@ extern bool osc_sb_apei_support_acked;
 				OSC_PCI_EXPRESS_AER_CONTROL |		\
 				OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 
-#define OSC_PCI_NATIVE_HOTPLUG	(OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |	\
-				OSC_SHPC_NATIVE_HP_CONTROL)
-
 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 					     u32 *mask, u32 req);