drm/gma500: Remove dev_priv branch from unload function

The value of dev_priv in psb_driver_unload() is always non-zero. Remove
the respective test.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210920141051.30988-5-tzimmermann@suse.de

drivers/gpu/drm/gma500/psb_drv.c

@@ -167,7 +167,6 @@ static void psb_driver_unload(struct drm_device *dev)
 
 	/* TODO: Kill vblank etc here */
 
-	if (dev_priv) {
 	if (dev_priv->backlight_device)
 		gma_backlight_exit(dev);
 	psb_modeset_cleanup(dev);
@@ -217,7 +216,7 @@ static void psb_driver_unload(struct drm_device *dev)
 
 	/* Destroy VBT data */
 	psb_intel_destroy_bios(dev);
-	}
+
 	gma_power_uninit(dev);
 }