Merge pull request #1684 from VinRudramurthy/dev-branch

Removed existing assignment delete and integrated new delete api.
aanalytics issues resolved
Merge pull request #1685 from ssushma/dev-branch

aanalytics issues resolved
Resolved conflicts.

Conflicts:

src/main/java/org/ednovo/gooru/client/mvp/analytics/collectionSummaryTeacher/CollectionSummaryTeacherView.java