blk: Drop IF_TYPE_SD

This is not really needed since it does the same things as MMC. Drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/disk/part.c b/disk/part.c
index a5c1d7a..2bcc6f4 100644
--- a/disk/part.c
+++ b/disk/part.c
@@ -135,7 +135,6 @@
 			dev_desc->revision,
 			dev_desc->product);
 		break;
-	case IF_TYPE_SD:
 	case IF_TYPE_MMC:
 	case IF_TYPE_USB:
 	case IF_TYPE_NVME:
@@ -772,7 +771,6 @@
 		devtype = "usbd";
 		break;
 	case IF_TYPE_MMC:
-	case IF_TYPE_SD:
 		devtype = "mmcsd";
 		break;
 	default:
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c
index 57230e9..2fa6a7e 100644
--- a/drivers/block/blk-uclass.c
+++ b/drivers/block/blk-uclass.c
@@ -22,7 +22,6 @@
 	[IF_TYPE_SCSI]		= "scsi",
 	[IF_TYPE_USB]		= "usb",
 	[IF_TYPE_MMC]		= "mmc",
-	[IF_TYPE_SD]		= "sd",
 	[IF_TYPE_SATA]		= "sata",
 	[IF_TYPE_HOST]		= "host",
 	[IF_TYPE_NVME]		= "nvme",
@@ -37,7 +36,6 @@
 	[IF_TYPE_SCSI]		= UCLASS_SCSI,
 	[IF_TYPE_USB]		= UCLASS_MASS_STORAGE,
 	[IF_TYPE_MMC]		= UCLASS_MMC,
-	[IF_TYPE_SD]		= UCLASS_INVALID,
 	[IF_TYPE_SATA]		= UCLASS_AHCI,
 	[IF_TYPE_HOST]		= UCLASS_ROOT,
 	[IF_TYPE_NVME]		= UCLASS_NVME,
diff --git a/include/blk.h b/include/blk.h
index c7461f9..cc30e38 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -33,7 +33,6 @@
 	IF_TYPE_SCSI,
 	IF_TYPE_USB,
 	IF_TYPE_MMC,
-	IF_TYPE_SD,
 	IF_TYPE_SATA,
 	IF_TYPE_HOST,
 	IF_TYPE_NVME,