Removed dropdown_search_input clear button as it is never displayed

app/assets/javascripts/vue_shared/components/dropdown/dropdown_search_input.vue

@@ -41,12 +41,5 @@ export default {
       autocomplete="off"
     />
     <i class="fa fa-search dropdown-input-search" aria-hidden="true" data-hidden="true"> </i>
-    <i
-      class="fa fa-times dropdown-input-clear js-dropdown-input-clear"
-      aria-hidden="true"
-      data-hidden="true"
-      role="button"
-    >
-    </i>
   </div>
 </template>

spec/frontend/vue_shared/components/dropdown/dropdown_search_input_spec.js

@@ -32,12 +32,6 @@ describe('DropdownSearchInputComponent', () => {
       expect(wrapper.find('.fa-search.dropdown-input-search').exists()).toBe(true);
     });
 
-    it('renders clear search icon element', () => {
-      expect(wrapper.find('.fa-times.dropdown-input-clear.js-dropdown-input-clear').exists()).toBe(
-        true,
-      );
-    });
-
     it('displays custom placeholder text', () => {
       expect(findInputEl().attributes('placeholder')).toBe(defaultProps.placeholderText);
     });