Remove parent = document from createFlash

Already matches the default params

app/assets/javascripts/ide/components/new_dropdown/modal.vue

@@ -62,7 +62,6 @@ export default {
               name: this.entryName,
             }),
             type: 'alert',
-            parent: document,
             fadeTransition: false,
             addBodyClass: true,
           });

app/assets/javascripts/ide/components/repo_editor.vue

@@ -253,7 +253,6 @@ export default {
           createFlash({
             message: __('Error setting up editor. Please try again.'),
             type: 'alert',
-            parent: document,
             fadeTransition: false,
             addBodyClass: true,
           });

app/assets/javascripts/ide/ide_router.js

@@ -114,7 +114,6 @@ export const createRouter = (store, defaultBranch) => {
           createFlash({
             message: __('Error while loading the project data. Please try again.'),
             type: 'alert',
-            parent: document,
             fadeTransition: false,
             addBodyClass: true,
           });

app/assets/javascripts/ide/stores/actions.js

@@ -42,7 +42,6 @@ export const createTempEntry = (
       }),
 
       type: 'alert',
-      parent: document,
       fadeTransition: false,
       addBodyClass: true,
     });
@@ -287,7 +286,6 @@ export const getBranchData = ({ commit, state }, { projectId, branchId, force =
             createFlash({
               message: __('Error loading branch data. Please try again.'),
               type: 'alert',
-              parent: document,
               fadeTransition: false,
               addBodyClass: true,
             });

app/assets/javascripts/ide/stores/actions/merge_request.js

@@ -37,7 +37,6 @@ export const getMergeRequestsForBranch = (
       createFlash({
         message: __(`Error fetching merge requests for ${branchId}`),
         type: 'alert',
-        parent: document,
         fadeTransition: false,
         addBodyClass: true,
       });

app/assets/javascripts/ide/stores/actions/project.js

@@ -22,7 +22,6 @@ export const getProjectData = ({ commit, state }, { namespace, projectId, force
           createFlash({
             message: __('Error loading project data. Please try again.'),
             type: 'alert',
-            parent: document,
             fadeTransition: false,
             addBodyClass: true,
           });
@@ -47,7 +46,6 @@ export const refreshLastCommitData = ({ commit }, { projectId, branchId } = {})
       createFlash({
         message: __('Error loading last commit.'),
         type: 'alert',
-        parent: document,
         fadeTransition: false,
         addBodyClass: true,
       });

app/assets/javascripts/ide/stores/modules/commit/actions.js

@@ -146,7 +146,6 @@ export const commitChanges = ({ commit, state, getters, dispatch, rootState, roo
         createFlash({
           message: data.message,
           type: 'alert',
-          parent: document,
           fadeTransition: false,
           addBodyClass: true,
         });