Remove task collection date hack

pkg/models/task_collection.go

@@ -119,19 +119,6 @@ func (tf *TaskCollection) ReadAll(a web.Auth, search string, page int, perPage i
 			param.orderBy = getSortOrderFromString(tf.OrderBy[i])
 		}
 
-		// Special case for pseudo date fields
-		// FIXME: This is really dirty, to fix this properly the db fields should be renamed
-		switch param.sortBy {
-		case "done_at":
-			param.sortBy = taskPropertyDoneAt
-		case "due_date":
-			param.sortBy = taskPropertyDueDate
-		case "start_date":
-			param.sortBy = taskPropertyStartDate
-		case "end_date":
-			param.sortBy = taskPropertyEndDate
-		}
-
 		// Param validation
 		if err := param.validate(); err != nil {
 			return nil, 0, 0, err