Dragonball: delete redundant comments in blk_dev_mgr
delete redundent derive part for BlockDeviceMgr.
fixes:
@@ -285,7 +285,6 @@ impl std::fmt::Debug for BlockDeviceInfo {
pub type BlockDeviceInfo = DeviceConfigInfo<BlockDeviceConfigInfo>;
/// Wrapper for the collection that holds all the Block Devices Configs
-//#[derive(Clone, Debug, Deserialize, PartialEq, Serialize)]
#[derive(Clone)]
pub struct BlockDeviceMgr {
/// A list of `BlockDeviceInfo` objects.
