iommu/amd: Remove redundant error check in amd_iommu_probe_device()

iommu_init_device() is not returning -ENOTSUPP since commit 61289cba
("iommu/amd: Remove old alias handling code").

No functional change intended.
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Reviewed-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240118090105.5864-6-vasant.hegde@amd.comSigned-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/amd/iommu.c

@@ -1950,8 +1950,7 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)
 
 	ret = iommu_init_device(iommu, dev);
 	if (ret) {
-		if (ret != -ENOTSUPP)
-			dev_err(dev, "Failed to initialize - trying to proceed anyway\n");
+		dev_err(dev, "Failed to initialize - trying to proceed anyway\n");
 		iommu_dev = ERR_PTR(ret);
 		iommu_ignore_device(iommu, dev);
 	} else {