net: miiphybb: Drop bb_miiphy_alloc()/bb_miiphy_free() and struct bb_miiphy_bus

These functions are no longer necessary, remove them.
The struct bb_miiphy_bus is no longer necessary either,
remove it as well.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
diff --git a/drivers/net/phy/miiphybb.c b/drivers/net/phy/miiphybb.c
index 60c791b..76463da 100644
--- a/drivers/net/phy/miiphybb.c
+++ b/drivers/net/phy/miiphybb.c
@@ -14,28 +14,9 @@
 
 #include <ioports.h>
 #include <ppc_asm.tmpl>
-#include <malloc.h>
 #include <miiphy.h>
 #include <asm/global_data.h>
 
-struct bb_miiphy_bus *bb_miiphy_alloc(void)
-{
-	struct bb_miiphy_bus *bus;
-
-	bus = malloc(sizeof(*bus));
-	if (!bus)
-		return bus;
-
-	mdio_init(&bus->mii);
-
-	return bus;
-}
-
-void bb_miiphy_free(struct bb_miiphy_bus *bus)
-{
-	free(bus);
-}
-
 /*****************************************************************************
  *
  * Utility to send the preamble, address, and register (common to read
diff --git a/include/miiphy.h b/include/miiphy.h
index d267837..dc8ae0c 100644
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -62,8 +62,6 @@
 
 #define BB_MII_DEVNAME	"bb_miiphy"
 
-struct bb_miiphy_bus;
-
 struct bb_miiphy_bus_ops {
 	int (*mdio_active)(struct mii_dev *miidev);
 	int (*mdio_tristate)(struct mii_dev *miidev);
@@ -73,13 +71,6 @@
 	int (*delay)(struct mii_dev *miidev);
 };
 
-struct bb_miiphy_bus {
-	struct mii_dev mii;
-};
-
-struct bb_miiphy_bus *bb_miiphy_alloc(void);
-void bb_miiphy_free(struct bb_miiphy_bus *bus);
-
 int bb_miiphy_read(struct mii_dev *miidev, const struct bb_miiphy_bus_ops *ops,
 		   int addr, int devad, int reg);
 int bb_miiphy_write(struct mii_dev *miidev, const struct bb_miiphy_bus_ops *ops,