TD-4782 image processing fix

Author: OluwatobiAwe

WebAPI/LearningHub.Nhs.Repository/Resources/BlockCollectionRepository.cs

@@ -83,22 +83,7 @@ public async Task DeleteBlockCollection(int userId, int blockCollectionId)
 
             foreach (var id in collectionIds)
             {
-                _ = Task.Run(async () =>
-                {
-                    var lhContext = new LearningHubDbContext(this.DbContext.Options);
-                    try
-                    {
-                        await lhContext.Database.ExecuteSqlRawAsync("resources.BlockCollectionDelete @p0", new SqlParameter("@p0", SqlDbType.Int) { Value = id });
-                    }
-                    catch (Exception ex)
-                    {
-                        throw new Exception(ex.Message);
-                    }
-                    finally
-                    {
-                        await lhContext.DisposeAsync();
-                    }
-                });
+               await this.DbContext.Database.ExecuteSqlRawAsync("resources.BlockCollectionDelete @p0", new SqlParameter("@p0", SqlDbType.Int) { Value = id });
             }
         }