Remove useless attachToDocument property

attachToDocument property is not needed

spec/frontend/pipelines/graph/action_component_spec.js

@@ -19,7 +19,6 @@ describe('pipeline graph action component', () => {
         link: 'foo',
         actionIcon: 'cancel',
       },
-      attachToDocument: true,
     });
   });
 

spec/frontend/pipelines/graph/job_item_spec.js

@@ -7,7 +7,6 @@ describe('pipeline graph job item', () => {
 
   const createWrapper = propsData => {
     wrapper = mount(JobItem, {
-      attachToDocument: true,
       propsData,
     });
   };

spec/frontend/pipelines/graph/linked_pipeline_spec.js

@@ -10,7 +10,6 @@ describe('Linked pipeline', () => {
 
   const createWrapper = propsData => {
     wrapper = mount(LinkedPipelineComponent, {
-      attachToDocument: true,
       propsData,
     });
   };

spec/frontend/pipelines/pipeline_triggerer_spec.js

@@ -24,7 +24,6 @@ describe('Pipelines Triggerer', () => {
   const createComponent = () => {
     wrapper = shallowMount(pipelineTriggerer, {
       propsData: mockData,
-      attachToDocument: true,
     });
   };
 

spec/frontend/pipelines/pipeline_url_spec.js

@@ -10,7 +10,6 @@ describe('Pipeline Url Component', () => {
 
   const createComponent = props => {
     wrapper = shallowMount(PipelineUrlComponent, {
-      attachToDocument: true,
       propsData: props,
     });
   };