Revert "drm/radeon: Fix EEH during kexec"

This reverts commit 6f7fe9a.

This breaks some boards.  Maybe just enable this on PPC for
now?

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=205147
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Author: alexdeucher

drivers/gpu/drm/radeon/radeon_drv.c

@@ -379,19 +379,11 @@ radeon_pci_remove(struct pci_dev *pdev)
 static void
 radeon_pci_shutdown(struct pci_dev *pdev)
 {
-	struct drm_device *ddev = pci_get_drvdata(pdev);
-
 	/* if we are running in a VM, make sure the device
 	 * torn down properly on reboot/shutdown
 	 */
 	if (radeon_device_is_virtual())
 		radeon_pci_remove(pdev);
-
-	/* Some adapters need to be suspended before a
-	* shutdown occurs in order to prevent an error
-	* during kexec.
-	*/
-	radeon_suspend_kms(ddev, true, true, false);
 }
 
 static int radeon_pmops_suspend(struct device *dev)