net: mediatek: drop wrong change from RSS support patch

MTK_CDMP_IG_CTRL is for netsys_v1 only.

Author: frank-w

drivers/net/ethernet/mediatek/mtk_eth_soc.c

@@ -4637,12 +4637,12 @@ static int mtk_hw_init(struct mtk_eth *eth, bool reset)
 	 */
 	val = mtk_r32(eth, MTK_CDMQ_IG_CTRL);
 	mtk_w32(eth, val | MTK_CDMQ_STAG_EN, MTK_CDMQ_IG_CTRL);
+	if (mtk_is_netsys_v1(eth)) {
+		val = mtk_r32(eth, MTK_CDMP_IG_CTRL);
+		mtk_w32(eth, val | MTK_CDMP_STAG_EN, MTK_CDMP_IG_CTRL);
 
-	val = mtk_r32(eth, MTK_CDMP_IG_CTRL);
-	mtk_w32(eth, val | MTK_CDMP_STAG_EN, MTK_CDMP_IG_CTRL);
-
-	if (mtk_is_netsys_v1(eth))
 		mtk_w32(eth, 1, MTK_CDMP_EG_CTRL);
+	}
 
 	/* set interrupt delays based on current Net DIM sample */
 	mtk_dim_rx(&eth->rx_dim.work);