ddr: altera: Remove unnecessary update of the SCC

Every invocation of the scc_mgr_set_dqs_en_delay_all_ranks() is
followed by SCC manager update. Moreover, only this function
triggers the SCC manager update internally. Thus, remove the
internal invocation to avoid triggering the update twice.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Chin Liang See <clsee@altera.com>

drivers/ddr/altera/sequencer.c

@@ -424,7 +424,6 @@ static void scc_mgr_set_dqs_en_delay_all_ranks(u32 read_group,
 	 */
 	scc_mgr_set_all_ranks(SCC_MGR_DQS_EN_DELAY_OFFSET,
 			      read_group, delay, 1);
-	writel(0, &sdr_scc_mgr->update);
 }
 
 /**