Merge branch '10710-pipeline-store' into 'master'

Removes extra space in CE

Closes gitlab-ee#10710

See merge request gitlab-org/gitlab-ce!26649

app/assets/javascripts/pipelines/stores/pipeline_store.js

 export default class PipelineStore {
   constructor() {
     this.state = {};
-
     this.state.pipeline = {};
   }