AssignmentRoute => Remove unnecessary test

ExpressAPI/src/routes/AssignmentRoutes.ts

@@ -80,10 +80,6 @@ class AssignmentRoutes implements RoutesManager {
             const getExercises = req.query.getMyExercises;
             let exercises: Array<Omit<Exercise, 'assignment'>> = [];
             if ( getExercises ) {
-                if ( !assignment ) {
-                    return res.status(StatusCodes.NOT_FOUND).send();
-                }
-
                 exercises = await db.exercise.findMany({
                                                            where  : {
                                                                assignmentName: assignment.name,