yii\mongodb\file\Collection::delete PHP Method

Deletes the file with given _id.

public delete ( mixed $id ) : boolean
$id	mixed	_id of the file to find.
return	boolean	whether the operation was successful.

    public function delete($id)
    {
        $this->remove(['_id' => $id], ['limit' => 1]);
        return true;
    }

Collection