Use empty array for emji instead

Instead of relying on a key that isn't actually usefull, I just provide an empty array directly.

src/components/report/report.vue

@@ -31,7 +31,7 @@
     <RichContent
       class="report-content"
       :html="report.content"
-      :emoji="report.emojis"
+      :emoji="[]"
     />
     <div v-if="report.statuses.length">
       <small>{{ $t('report.reported_statuses') }}</small>

src/components/rich_content/rich_content.jsx

@@ -42,8 +42,7 @@ export default Vue.component('RichContent', {
     // Emoji object, as in status.emojis, note the "s" at the end...
     emoji: {
       required: true,
-      type: Array,
-      default: () => []
+      type: Array
     },
     // Whether to handle links or not (posts: yes, everything else: no)
     handleLinks: {