media: i2c: og01a1b: Drop check for reentrant .s_stream()

The subdev .s_stream() operation shall not be called to start streaming
on an already started subdev, or stop streaming on a stopped subdev.
Remove the check that guards against that condition.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

drivers/media/i2c/og01a1b.c

@@ -732,9 +732,6 @@ static int og01a1b_set_stream(struct v4l2_subdev *sd, int enable)
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 	int ret = 0;
 
-	if (og01a1b->streaming == enable)
-		return 0;
-
 	mutex_lock(&og01a1b->mutex);
 	if (enable) {
 		ret = pm_runtime_resume_and_get(&client->dev);