mmc: sdhci-omap: drop ->get_ro() implementation

The SDHCI core is now properly checking for the state of a WP GPIO,
so there is no longer any need for the sdhci-omap code to implement
->get_ro() using mmc_gpio_get_ro().
Signed-off-by: NThomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: NThierry Reding <treding@nvidia.com>
Acked-by: NAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-omap.c

@@ -1097,7 +1097,6 @@ static int sdhci_omap_probe(struct platform_device *pdev)
 		goto err_put_sync;
 	}
 
-	host->mmc_host_ops.get_ro = mmc_gpio_get_ro;
 	host->mmc_host_ops.start_signal_voltage_switch =
 					sdhci_omap_start_signal_voltage_switch;
 	host->mmc_host_ops.set_ios = sdhci_omap_set_ios;