Remove redundant specs for tooltip

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

@@ -17,13 +17,6 @@ export default {
       type: String,
       required: true,
     },
-
-    tooltipPlacement: {
-      type: String,
-      required: false,
-      default: 'top',
-    },
-
     cssClass: {
       type: String,
       required: false,
@@ -37,8 +30,6 @@ export default {
     v-gl-tooltip="{ placement: tooltipPlacement }"
     :class="cssClass"
     :title="tooltipTitle(time)"
-    :data-placement="tooltipPlacement"
-    v-text="timeFormated(time)"
-  >
+    v-text="timeFormated(time)">
   </time>
 </template>

spec/javascripts/issue_show/components/edited_spec.js

@@ -46,14 +46,4 @@ describe('edited', () => {
     expect(editedComponent.$el.querySelector('.author-link')).toBeFalsy();
     expect(editedComponent.$el.querySelector('time')).toBeTruthy();
   });
-
-  it('renders time ago tooltip at the bottom', () => {
-    const editedComponent = new EditedComponent({
-      propsData: {
-        updatedAt: '2017-05-15T12:31:04.428Z',
-      },
-    }).$mount();
-
-    expect(editedComponent.$el.querySelector('time').dataset.placement).toEqual('bottom');
-  });
 });

spec/javascripts/vue_shared/components/time_ago_tooltip_spec.js

@@ -26,24 +26,11 @@ describe('Time ago with tooltip component', () => {
       formatDate('2017-05-08T14:57:39.781Z'),
     );
 
-    expect(vm.$el.getAttribute('data-placement')).toEqual('top');
-
     const timeago = getTimeago();
 
     expect(vm.$el.textContent.trim()).toEqual(timeago.format('2017-05-08T14:57:39.781Z'));
   });
 
-  it('should render tooltip placed in bottom', () => {
-    vm = new TimeagoTooltip({
-      propsData: {
-        time: '2017-05-08T14:57:39.781Z',
-        tooltipPlacement: 'bottom',
-      },
-    }).$mount();
-
-    expect(vm.$el.getAttribute('data-placement')).toEqual('bottom');
-  });
-
   it('should render provided html class', () => {
     vm = new TimeagoTooltip({
       propsData: {