Remove unused prop parameter

client/src/components/objective-groups/Objective.vue

@@ -38,7 +38,12 @@
   import me from '@/mixins/me';
 
   export default {
-    props: ['objective', 'schoolClass'],
+    props: {
+      objective: {
+        type: Object,
+        default: null
+      }
+    },
 
     mixins: [me, editModule],
 

client/src/components/objective-groups/ObjectiveGroup.vue

@@ -14,7 +14,6 @@
       <objective
         :key="objective.id"
         :objective="objective"
-        :school-class="schoolClass"
         class="objective-group__objective"
         v-for="objective in group.objectives"/>
     </ul>