Removed existing assignment delete and integrated new delete api.
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge branch 'dev-branch' of https://github.com/Gooru/Gooru-Web into dev-branch
Merge pull request #1684 from VinRudramurthy/dev-branch

Removed existing assignment delete and integrated new delete api.