MLK-13440-5 fsl_usdhc: Remove the CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT

Since we have added the "vs18_enable" parameter for fixed 1.8v I/O, remove
the CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT. This configuration can only work
with one MMC device. If more devices are supported, this will set 1.8v to
all controllers, so will cause problem to 3.3v devices.

Signed-off-by: Ye Li <ye.li@nxp.com>
(cherry picked from commit c1de6a58)

drivers/mmc/fsl_esdhc.c

@@ -640,10 +640,6 @@ static int esdhc_init(struct mmc *mmc)
 	/* Set timout to the maximum value */
 	esdhc_clrsetbits32(&regs->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
 
-#ifdef CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT
-	esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);
-#endif
-
 	if (cfg->vs18_enable)
 		esdhc_setbits32(&regs->vendorspec, ESDHC_VENDORSPEC_VSELECT);