[media] tc358743: drop bogus comment

The control in question is not a private control, so drop that
comment. Copy-and-paste left-over.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/i2c/tc358743.c

@@ -1863,7 +1863,6 @@ static int tc358743_probe(struct i2c_client *client,
 	/* control handlers */
 	v4l2_ctrl_handler_init(&state->hdl, 3);
 
-	/* private controls */
 	state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(&state->hdl, NULL,
 			V4L2_CID_DV_RX_POWER_PRESENT, 0, 1, 0, 0);