Add aria-hidden attribute to icon vue component

app/assets/javascripts/boards/components/issue_card_inner.vue

@@ -147,7 +147,6 @@
         <icon
           v-if="issue.confidential"
           name="eye-slash"
-          aria-hidden="true"
           class="confidential-icon"
         />
         <a

app/assets/javascripts/boards/components/project_select.vue

@@ -84,7 +84,6 @@ export default {
         {{ selectedProjectName }}
         <icon
           name="angle-down"
-          aria-hidden="true"
         />
       </button>
       <div class="dropdown-menu dropdown-menu-selectable dropdown-menu-full-width">
@@ -97,7 +96,6 @@ export default {
           >
             <icon
               name="merge-request-close-m"
-              aria-hidden="true"
               data-hidden="true"
               class="dropdown-menu-close-icon"
             />
@@ -112,7 +110,6 @@ export default {
           <icon
             name="search"
             class="dropdown-input-search"
-            aria-hidden="true"
             data-hidden="true"
           />
         </div>

app/assets/javascripts/cycle_analytics/components/banner.vue

@@ -34,7 +34,6 @@
     >
       <icon
         name="close"
-        aria-hidden="true"
       />
     </button>
     <div

app/assets/javascripts/environments/components/environment_actions.vue

@@ -62,7 +62,6 @@ export default {
         <icon name="play" />
         <icon
           name="chevron-down"
-          aria-hidden="true"
         />
         <gl-loading-icon v-if="isLoading" />
       </span>

app/assets/javascripts/environments/components/environment_item.vue

@@ -533,13 +533,11 @@ export default {
         <icon
           :name="folderIconName"
           class="folder-icon"
-          aria-hidden="true"
         />
 
         <icon
           name="folder"
           class="folder-icon"
-          aria-hidden="true"
         />
 
         <span>

app/assets/javascripts/frequent_items/components/frequent_items_search_input.vue

@@ -53,7 +53,6 @@ export default {
       v-if="!searchQuery"
       name="search"
       class="search-icon"
-      aria-hidden="true"
     />
   </div>
 </template>

app/assets/javascripts/vue_shared/components/icon.vue

@@ -105,6 +105,7 @@ export default {
     :x="x"
     :y="y"
     :tabindex="tabIndex"
+    aria-hidden="true"
   >
     <use v-bind="{ 'xlink:href':spriteHref }"/>
   </svg>