mmc: am654_sdhci: Drop a redundant power_domain_on in probe

Power-domain is enabled by default in device_probe. am654 mmc driver
is enabling power-domain again in probe. As the second call is
redundant, drop power_domain_on from probe.

Tested-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c
index 1793a3f..7cd5516 100644
--- a/drivers/mmc/am654_sdhci.c
+++ b/drivers/mmc/am654_sdhci.c
@@ -219,23 +219,10 @@
 	struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
 	struct sdhci_host *host = dev_get_priv(dev);
 	struct mmc_config *cfg = &plat->cfg;
-	struct power_domain sdhci_pwrdmn;
 	struct clk clk;
 	unsigned long clock;
 	int ret;
 
-	ret = power_domain_get_by_index(dev, &sdhci_pwrdmn, 0);
-	if (!ret) {
-		ret = power_domain_on(&sdhci_pwrdmn);
-		if (ret) {
-			dev_err(dev, "Power domain on failed (%d)\n", ret);
-			return ret;
-		}
-	} else if (ret != -ENOENT && ret != -ENODEV && ret != -ENOSYS) {
-		dev_err(dev, "failed to get power domain (%d)\n", ret);
-		return ret;
-	}
-
 	ret = clk_get_by_index(dev, 0, &clk);
 	if (ret) {
 		dev_err(dev, "failed to get clock\n");