mmc: sdhci: Remove SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST

SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST quirk is not used anymore so
remove it.
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci.c

@@ -1186,8 +1186,6 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
 	host->mmc->actual_clock = 0;
 
 	sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
-	if (host->quirks2 & SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST)
-		mdelay(1);
 
 	if (clock == 0)
 		return;

drivers/mmc/host/sdhci.h

@@ -417,11 +417,6 @@ struct sdhci_host {
 #define SDHCI_QUIRK2_ACMD23_BROKEN			(1<<14)
 /* Broken Clock divider zero in controller */
 #define SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN		(1<<15)
-/*
- * When internal clock is disabled, a delay is needed before modifying the
- * SD clock frequency or enabling back the internal clock.
- */
-#define SDHCI_QUIRK2_NEED_DELAY_AFTER_INT_CLK_RST	(1<<16)
 
 	int irq;		/* Device IRQ */
 	void __iomem *ioaddr;	/* Mapped address */