commented code

frontend/src/app/components/students/student-enroll/student-enroll.component.html

@@ -14,12 +14,12 @@
               name="student-enroll-begin-input{{ i }}"
               type="date"
               [(ngModel)]="enrollment.begin" />
-            <button
+            <!-- <button
               *ngIf="!enrollment.begin"
               class="button-add"
               (click)="enroll(enrollment)">
               +
-            </button>
+            </button> -->
           </div>
           <div>
             <input