remove unnecessary callback.
remove unnecessary callback.

kakadiya91/ydn-db,yathit/ydn-db,kakadiya91/ydn-db,yathit/ydn-db,yathit/ydn-db,yathit/ydn-db,kakadiya91/ydn-db,kakadiya91/ydn-db,kakadiya91/ydn-db,yathit/ydn-db