blk: Drop blk_prepare_device()

With the post_probe() changes, this API is no longer needed.
Signed-off-by: NBin Meng <bmeng.cn@gmail.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

drivers/block/blk-uclass.c

@@ -471,15 +471,6 @@ unsigned long blk_derase(struct blk_desc *block_dev, lbaint_t start,
 	return ops->erase(dev, start, blkcnt);
 }
 
-int blk_prepare_device(struct udevice *dev)
-{
-	struct blk_desc *desc = dev_get_uclass_platdata(dev);
-
-	part_init(desc);
-
-	return 0;
-}
-
 int blk_get_from_parent(struct udevice *parent, struct udevice **devp)
 {
 	struct udevice *dev;

include/blk.h

@@ -356,16 +356,6 @@ int blk_create_devicef(struct udevice *parent, const char *drv_name,
 		       const char *name, int if_type, int devnum, int blksz,
 		       lbaint_t lba, struct udevice **devp);
 
-/**
- * blk_prepare_device() - Prepare a block device for use
- *
- * This reads partition information from the device if supported.
- *
- * @dev:	Device to prepare
- * @return 0 if ok, -ve on error
- */
-int blk_prepare_device(struct udevice *dev);
-
 /**
  * blk_unbind_all() - Unbind all device of the given interface type
  *