remove mini-graph js from dispatcher for pipelines:index

app/assets/javascripts/dispatcher.js.es6

@@ -173,11 +173,6 @@
             new TreeView();
           }
           break;
-        case 'projects:pipelines:index':
-          // new gl.MiniPipelineGraph({
-          //   container: '.js-pipeline-table',
-          // });
-          break;
         case 'projects:pipelines:builds':
         case 'projects:pipelines:show':
           const { controllerAction } = document.querySelector('.js-pipeline-container').dataset;