net: stmmac: pci: remove the duplicate code of set phy_mask

All members of mdio_bus_data are cleared to 0 when it was obtained
by devm_kzalloc(). so It doesn't need to set phy_mask as 0 again.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c

@@ -65,7 +65,6 @@ static void common_default_data(struct plat_stmmacenet_data *plat)
 	plat->force_sf_dma_mode = 1;
 
 	plat->mdio_bus_data->needs_reset = true;
-	plat->mdio_bus_data->phy_mask = 0;
 
 	/* Set default value for multicast hash bins */
 	plat->multicast_filter_bins = HASH_TABLE_SIZE;
@@ -154,8 +153,6 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 	plat->tx_queues_cfg[6].weight = 0x0F;
 	plat->tx_queues_cfg[7].weight = 0x10;
 
-	plat->mdio_bus_data->phy_mask = 0;
-
 	plat->dma_cfg->pbl = 32;
 	plat->dma_cfg->pblx8 = true;
 	plat->dma_cfg->fixed_burst = 0;
@@ -386,8 +383,6 @@ static int snps_gmac5_default_data(struct pci_dev *pdev,
 	plat->tso_en = 1;
 	plat->pmt = 1;
 
-	plat->mdio_bus_data->phy_mask = 0;
-
 	/* Set default value for multicast hash bins */
 	plat->multicast_filter_bins = HASH_TABLE_SIZE;