Remove useless attachToDocument property

attachToDocument property is not needed

ee/spec/frontend/vue_shared/security_reports/card_security_reports_app_spec.js

@@ -21,7 +21,6 @@ describe('Card security reports app', () => {
   const createComponent = props => {
     wrapper = mount(CardSecurityDashboardApp, {
       store: createStore(),
-      attachToDocument: true,
       stubs: ['security-dashboard-table'],
       propsData: {
         hasPipelineData: true,

ee/spec/frontend/vue_shared/security_reports/components/dismiss_button_spec.js

@@ -6,10 +6,7 @@ describe('DismissalButton', () => {
   let wrapper;
 
   const mountComponent = options => {
-    wrapper = mount(component, {
-      attachToDocument: true,
-      ...options,
-    });
+    wrapper = mount(component, options);
   };
 
   describe('With a non-dismissed vulnerability', () => {

ee/spec/frontend/vue_shared/security_reports/components/dismissal_note_spec.js

@@ -22,7 +22,7 @@ describe('dismissal note', () => {
   let wrapper;
 
   const mountComponent = (options, mountFn = shallowMount) => {
-    wrapper = mountFn(component, { attachToDocument: true, ...options });
+    wrapper = mountFn(component, options);
   };
 
   describe('with no attached project or pipeline', () => {

ee/spec/frontend/vue_shared/security_reports/components/event_item_spec.js

@@ -5,7 +5,7 @@ describe('Event Item', () => {
   let wrapper;
 
   const mountComponent = (options, mountFn = shallowMount) => {
-    wrapper = mountFn(Component, { attachToDocument: true, ...options });
+    wrapper = mountFn(Component, options);
   };
 
   describe('initial state', () => {

ee/spec/frontend/vue_shared/security_reports/components/modal_footer_spec.js

@@ -9,10 +9,7 @@ describe('Security Reports modal footer', () => {
   let wrapper;
 
   const mountComponent = options => {
-    wrapper = mount(component, {
-      attachToDocument: true,
-      ...options,
-    });
+    wrapper = mount(component, options);
   };
 
   describe('can only create issue', () => {

ee/spec/frontend/vue_shared/security_reports/components/modal_spec.js

@@ -8,7 +8,7 @@ describe('Security Reports modal', () => {
   let wrapper;
 
   const mountComponent = (options, mountFn = shallowMount) => {
-    wrapper = mountFn(component, { attachToDocument: true, ...options });
+    wrapper = mountFn(component, options);
   };
 
   describe('with permissions', () => {