Remove tooltip from API and vue, follow up:

https://gitlab.com/gitlab-org/gitlab-ce/issues/30511

app/assets/javascripts/vue_pipelines_index/components/status.js

@@ -36,7 +36,7 @@ export default {
 
   computed: {
     cssClasses() {
-      return `ci-status ci-${this.pipeline.details.status.group} has-tooltip`;
+      return `ci-status ci-${this.pipeline.details.status.group}`;
     },
 
     detailsPath() {
@@ -47,17 +47,12 @@ export default {
     content() {
       return `${this.svg} ${this.pipeline.details.status.text}`;
     },
-
-    tooltipTitle() {
-      return this.pipeline.details.status_tooltip;
-    },
   },
   template: `
     <td class="commit-link">
       <a
         :class="cssClasses"
         :href="detailsPath"
-        :title="tooltipTitle"
         v-html="content">
       </a>
     </td>

app/serializers/pipeline_entity.rb

@@ -13,7 +13,6 @@ class PipelineEntity < Grape::Entity
 
   expose :details do
     expose :detailed_status, as: :status, with: StatusEntity
-    expose :status_tooltip
     expose :duration
     expose :finished_at
     expose :stages, using: StageEntity
@@ -82,8 +81,4 @@ class PipelineEntity < Grape::Entity
   def detailed_status
     pipeline.detailed_status(request.user)
   end
-
-  def status_tooltip
-    pipeline.present(current_user: request.user).status_title
-  end
 end