mmc: fsl_esdhc_imx: remove redundant DM_MMC checking

[ fsl_esdhc commit 2913926f3b3dec282f8773e3c02377c9600d8267 ]

Remove redundant DM_MMC checking which is already in DM_MMC conditional
compile block.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/mmc/fsl_esdhc_imx.c b/drivers/mmc/fsl_esdhc_imx.c
index 85cd72a..121f918 100644
--- a/drivers/mmc/fsl_esdhc_imx.c
+++ b/drivers/mmc/fsl_esdhc_imx.c
@@ -1609,7 +1609,6 @@
 	return esdhc_init_common(priv, mmc);
 }
 
-#if CONFIG_IS_ENABLED(DM_MMC)
 static int fsl_esdhc_get_cd(struct udevice *dev)
 {
 	struct fsl_esdhc_priv *priv = dev_get_priv(dev);
@@ -1675,7 +1674,6 @@
 #endif
 	.wait_dat0 = fsl_esdhc_wait_dat0,
 };
-#endif
 
 static struct esdhc_soc_data usdhc_imx7d_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING