dm: mmc: Drop the get_dev() function

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

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 024368c..185d7b2 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -1582,7 +1582,7 @@
 	free(mmc);
 }
 
-static int mmc_get_devp(int dev, struct blk_desc **descp)
+static int mmc_get_dev(int dev, struct blk_desc **descp)
 {
 	struct mmc *mmc = find_mmc_device(dev);
 	int ret;
@@ -1598,18 +1598,6 @@
 	return 0;
 }
 
-#ifdef CONFIG_PARTITIONS
-struct blk_desc *mmc_get_dev(int dev)
-{
-	struct blk_desc *desc;
-
-	if (mmc_get_devp(dev, &desc))
-		return NULL;
-
-	return desc;
-}
-#endif
-
 /* board-specific MMC power initializations. */
 __weak void board_mmc_power_init(void)
 {
@@ -1987,5 +1975,5 @@
 	.if_typename	= "mmc",
 	.if_type	= IF_TYPE_MMC,
 	.max_devs	= -1,
-	.get_dev	= mmc_get_devp,
+	.get_dev	= mmc_get_dev,
 };