dm: mmc: Drop CONFIG_DM_MMC_OPS

All boards which use DM_MMC have now been converted to use DM_MMC_OPS.
Drop the option and good riddance.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/sdhci.h b/include/sdhci.h
index 6a43271..7e84012 100644
--- a/include/sdhci.h
+++ b/include/sdhci.h
@@ -410,7 +410,7 @@
 int add_sdhci(struct sdhci_host *host, u32 f_max, u32 f_min);
 #endif /* !CONFIG_BLK */
 
-#ifdef CONFIG_DM_MMC_OPS
+#ifdef CONFIG_DM_MMC
 /* Export the operations to drivers */
 int sdhci_probe(struct udevice *dev);
 extern const struct dm_mmc_ops sdhci_ops;