[MM-52708] webapp/channels : Remove "FormattedAdminHeader" component (#23344)

webapp/channels/src/sass/routes/_statistics.scss

@@ -142,6 +142,11 @@
         }
     }
 
+    .admin-console__header {
+        align-items: center;
+        justify-content: space-between;
+    }
+
     .team-statistics__header-row {
         align-items: center;
         justify-content: space-between;