scsi: ufs: ufs-qcom: Remove unneeded code

Checks information about tx_lanes, but is not used.

Since commit 1e1e465c ("scsi/ufs: qcom: Remove ufs_qcom_phy_*() calls
from host"), tx_lanes is deprecated.

As a result, ufs_qcom_link_startup_notify -> POST_CHANGE action does
nothing.  If it is not going to be updated, it can be removed.

Link: https://lore.kernel.org/r/20220627235545.16943-1-cw9316.lee@samsung.comReviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: ChanWoo Lee <cw9316.lee@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/ufs/host/ufs-qcom.c

@@ -58,19 +58,6 @@ static void ufs_qcom_dump_regs_wrapper(struct ufs_hba *hba, int offset, int len,
 	ufshcd_dump_regs(hba, offset, len * 4, prefix);
 }
 
-static int ufs_qcom_get_connected_tx_lanes(struct ufs_hba *hba, u32 *tx_lanes)
-{
-	int err = 0;
-
-	err = ufshcd_dme_get(hba,
-			UIC_ARG_MIB(PA_CONNECTEDTXDATALANES), tx_lanes);
-	if (err)
-		dev_err(hba->dev, "%s: couldn't read PA_CONNECTEDTXDATALANES %d\n",
-				__func__, err);
-
-	return err;
-}
-
 static int ufs_qcom_host_clk_get(struct device *dev,
 		const char *name, struct clk **clk_out, bool optional)
 {
@@ -194,13 +181,6 @@ static int ufs_qcom_init_lane_clks(struct ufs_qcom_host *host)
 	return err;
 }
 
-static int ufs_qcom_link_startup_post_change(struct ufs_hba *hba)
-{
-	u32 tx_lanes;
-
-	return ufs_qcom_get_connected_tx_lanes(hba, &tx_lanes);
-}
-
 static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
 {
 	int err;
@@ -569,9 +549,6 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
 		if (ufshcd_get_local_unipro_ver(hba) != UFS_UNIPRO_VER_1_41)
 			err = ufshcd_disable_host_tx_lcc(hba);
 
-		break;
-	case POST_CHANGE:
-		ufs_qcom_link_startup_post_change(hba);
 		break;
 	default:
 		break;