upgrade ADF 3.3.0 alpha (#1123)

* update to alpha

* remove locale

src/app.config.json

@@ -15,7 +15,6 @@
     "redirectUri": "/",
     "redirectUriLogout": "/logout"
   },
-  "locale": "en",
   "application": {
     "name": "Alfresco Content Application",
     "logo": "assets/images/alfresco-logo-flower.svg",

src/app/ui/custom-theme.scss

@@ -11,7 +11,6 @@
 @import '../components/create-menu/create-menu.component.scss';
 @import '../components/layout/layout.theme.scss';
 
-@import 'overrides/adf-layout-container.theme';
 @import './overrides/adf-document-list.theme';
 
 @import 'snackbar';

src/app/ui/overrides/adf-layout-container.theme.scss

@@ -1,10 +0,0 @@
-@mixin adf-layout-container-theme($theme) {
-  $adf-layout-container-height: 100% !default;
-
-  adf-layout-container {
-    .mat-drawer-content > div,
-    .mat-drawer-content > div > div {
-      height: $adf-layout-container-height;
-    }
-  }
-}