Merged in DSC-1074 (pull request DSpace#607)

[CST-10219][DSC-1074] hide relationships tab fix checkstyle

Author: steph-ieffam

src/app/item-page/edit-item-page/edit-item-page.routing.module.ts

@@ -84,13 +84,13 @@ import { EditItemResolver } from './../../core/shared/resolvers/edit-item.resolv
                 data: { title: 'item.edit.tabs.metadata.title', showBreadcrumbs: true },
                 canActivate: [ItemPageMetadataGuard]
               },
-              /* Commented out code because DSpace 7 relationships are not used by DSpace CRIS 7 
+              /* Commented out code because DSpace 7 relationships are not used by DSpace CRIS 7
               {
                 path: 'relationships',
                 component: ItemRelationshipsComponent,
                 data: { title: 'item.edit.tabs.relationships.title', showBreadcrumbs: true },
                 canActivate: [ItemPageRelationshipsGuard]
-              } ,*/
+              }, */
               /* TODO - uncomment & fix when view page exists
               {
                 path: 'view',