dm: sata: Drop the get_dev() function

This function is implemented by the legacy block functions now. Drop it.

We cannot yet make sata_dev_desc[] private to common/sata.c as it is used by
the SATA drivers. This will require the SATA interface to be reworked.

Signed-off-by: Simon Glass <sjg@chromium.org>

disk/part.c

@@ -26,7 +26,7 @@ const struct block_drvr block_drvr[] = {
 	{ .name = "ide", },
 #endif
 #if defined(CONFIG_CMD_SATA)
-	{.name = "sata", .get_dev = sata_get_dev, },
+	{.name = "sata", },
 #endif
 #if defined(CONFIG_SCSI)
 	{ .name = "scsi", },