mmc: dw_mmc: remove the unused blk_setting

"blk_setting" doesn't use anywhere.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index de88e64..091df65 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2436,28 +2436,20 @@
 	if (ret)
 		goto err_host_allocated;
 
-	if (host->pdata->blk_settings) {
-		mmc->max_segs = host->pdata->blk_settings->max_segs;
-		mmc->max_blk_size = host->pdata->blk_settings->max_blk_size;
-		mmc->max_blk_count = host->pdata->blk_settings->max_blk_count;
-		mmc->max_req_size = host->pdata->blk_settings->max_req_size;
-		mmc->max_seg_size = host->pdata->blk_settings->max_seg_size;
+	/* Useful defaults if platform data is unset. */
+	if (host->use_dma) {
+		mmc->max_segs = host->ring_size;
+		mmc->max_blk_size = 65536;
+		mmc->max_seg_size = 0x1000;
+		mmc->max_req_size = mmc->max_seg_size * host->ring_size;
+		mmc->max_blk_count = mmc->max_req_size / 512;
 	} else {
-		/* Useful defaults if platform data is unset. */
-		if (host->use_dma) {
-			mmc->max_segs = host->ring_size;
-			mmc->max_blk_size = 65536;
-			mmc->max_seg_size = 0x1000;
-			mmc->max_req_size = mmc->max_seg_size * host->ring_size;
-			mmc->max_blk_count = mmc->max_req_size / 512;
-		} else {
-			mmc->max_segs = 64;
-			mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */
-			mmc->max_blk_count = 512;
-			mmc->max_req_size = mmc->max_blk_size *
-					    mmc->max_blk_count;
-			mmc->max_seg_size = mmc->max_req_size;
-		}
+		mmc->max_segs = 64;
+		mmc->max_blk_size = 65536; /* BLKSIZ is 16 bits */
+		mmc->max_blk_count = 512;
+		mmc->max_req_size = mmc->max_blk_size *
+				    mmc->max_blk_count;
+		mmc->max_seg_size = mmc->max_req_size;
 	}
 
 	if (dw_mci_get_cd(mmc))