Revert "drm/amdgpu: enable mca debug mode on APU by default"

Not needed any more with firmware fixes
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c

@@ -3138,8 +3138,7 @@ int amdgpu_ras_late_init(struct amdgpu_device *adev)
 	if (amdgpu_sriov_vf(adev))
 		return 0;
 
-	/* enable MCA debug on APU device */
-	amdgpu_ras_set_mca_debug_mode(adev, !!(adev->flags & AMD_IS_APU));
+	amdgpu_ras_set_mca_debug_mode(adev, false);
 
 	list_for_each_entry_safe(node, tmp, &adev->ras_list, node) {
 		if (!node->ras_obj) {