mmc: sh_mmcif: Remove unused clk_ctrl2_present from the platform data

There are currently no users of the clk_ctrl2_present member from the
platform data, so let's remove it.

Note, as some of the sh_mmcif variants may support clk_ctrl2, let's keep
the current code in the driver, which deals with this. For future support,
we should invent a DT binding instead, but let's leave that until it's
needed.

Cc: Kuninori Morimoto <[e-mail]>
Signed-off-by: Ulf Hansson <[e-mail]>
Reviewed-by: Linus Walleij <[e-mail]>

drivers/mmc/host/sh_mmcif.c

···
 	host->addr	= reg;
 	host->timeout	= msecs_to_jiffies(10000);
 	host->ccs_enable = true;
-	host->clk_ctrl2_enable = pd && pd->clk_ctrl2_present;
+	host->clk_ctrl2_enable = false;
 
 	host->pd = pdev;
 

include/linux/mmc/sh_mmcif.h

···
 struct sh_mmcif_plat_data {
 	unsigned int		slave_id_tx;	/* embedded slave_id_[tr]x */
 	unsigned int		slave_id_rx;
-	bool			clk_ctrl2_present : 1;
 	u8			sup_pclk;	/* 1 :SH7757, 0: SH7724/SH7372 */
 	unsigned long		caps;
 	u32			ocr;