media: c8sectpfe: dvb: remove unnecessary (void*) conversions

Pointer variables of void * type do not require type cast.

Link: https://lore.kernel.org/linux-media/20230320070828.13322-1-yuzhe@nfschina.comSigned-off-by: Yu Zhe <yuzhe@nfschina.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/st/sti/c8sectpfe/c8sectpfe-core.c

@@ -135,7 +135,7 @@ static void channel_swdemux_tsklet(struct tasklet_struct *t)
 static int c8sectpfe_start_feed(struct dvb_demux_feed *dvbdmxfeed)
 {
 	struct dvb_demux *demux = dvbdmxfeed->demux;
-	struct stdemux *stdemux = (struct stdemux *)demux->priv;
+	struct stdemux *stdemux = demux->priv;
 	struct c8sectpfei *fei = stdemux->c8sectpfei;
 	struct channel_info *channel;
 	u32 tmp;
@@ -256,7 +256,7 @@ static int c8sectpfe_stop_feed(struct dvb_demux_feed *dvbdmxfeed)
 {
 
 	struct dvb_demux *demux = dvbdmxfeed->demux;
-	struct stdemux *stdemux = (struct stdemux *)demux->priv;
+	struct stdemux *stdemux = demux->priv;
 	struct c8sectpfei *fei = stdemux->c8sectpfei;
 	struct channel_info *channel;
 	int idlereq;