ice: remove unnecessary (void*) conversions

No need cast (void*) to (struct ice_ring_container *).
Signed-off-by: Wu Yunchuan <yunchuan@nfschina.com>
Link: https://lore.kernel.org/r/20230717031154.54740-1-yunchuan@nfschina.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/intel/ice/ice_main.c

@@ -6249,7 +6249,7 @@ static void ice_tx_dim_work(struct work_struct *work)
 	u16 itr;
 
 	dim = container_of(work, struct dim, work);
-	rc = (struct ice_ring_container *)dim->priv;
+	rc = dim->priv;
 
 	WARN_ON(dim->profile_ix >= ARRAY_SIZE(tx_profile));
 
@@ -6269,7 +6269,7 @@ static void ice_rx_dim_work(struct work_struct *work)
 	u16 itr;
 
 	dim = container_of(work, struct dim, work);
-	rc = (struct ice_ring_container *)dim->priv;
+	rc = dim->priv;
 
 	WARN_ON(dim->profile_ix >= ARRAY_SIZE(rx_profile));