i915: Remove intel_acpi.c

It is GPL licenced and doesn't seems to be needed.
Lid events are still detected on my laptop.
If part of this code is needed on some machine we will need to
rewrite it correctly.

Sponsored by:	Beckhoff Automation GmbH & Co. KG

Author: evadot

drivers/gpu/drm/i915/display/intel_acpi.c

@@ -18932,7 +18932,9 @@ void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915)
 	/* poll work can call into fbdev, hence clean that up afterwards */
 	intel_fbdev_fini(i915);
 
+#ifdef __linux__
 	intel_unregister_dsm_handler();
+#endif
 
 	intel_fbc_global_disable(i915);
 

drivers/gpu/drm/i915/display/intel_display.c

@@ -669,7 +669,9 @@ static void intel_didl_outputs(struct drm_i915_private *dev_priv)
 	max_outputs = ARRAY_SIZE(opregion->acpi->didl) +
 		ARRAY_SIZE(opregion->acpi->did2);
 
+#ifdef __linux__
 	intel_acpi_device_id_update(dev_priv);
+#endif
 
 	drm_connector_list_iter_begin(&dev_priv->drm, &conn_iter);
 	for_each_intel_connector_iter(connector, &conn_iter) {

drivers/gpu/drm/i915/display/intel_opregion.c

@@ -738,7 +738,9 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
 	intel_power_domains_enable(dev_priv);
 	intel_runtime_pm_enable(&dev_priv->runtime_pm);
 
+#ifdef __linux__
 	intel_register_dsm_handler();
+#endif
 
 	if (i915_switcheroo_register(dev_priv))
 		drm_err(&dev_priv->drm, "Failed to register vga switcheroo!\n");
@@ -752,7 +754,9 @@ static void i915_driver_unregister(struct drm_i915_private *dev_priv)
 {
 	i915_switcheroo_unregister(dev_priv);
 
+#ifdef __linux__
 	intel_unregister_dsm_handler();
+#endif
 
 	intel_runtime_pm_disable(&dev_priv->runtime_pm);
 	intel_power_domains_disable(dev_priv);

drivers/gpu/drm/i915/i915_drv.c

@@ -38,7 +38,6 @@ SRCS=	\
 	i915_user_extensions.c \
 	i915_vgpu.c \
 	i915_vma.c \
-	intel_acpi.c \
 	intel_atomic.c \
 	intel_atomic_plane.c \
 	intel_audio.c \