Remove outdated TODOs for romax.

components/offline_pages/core/offline_page_storage_manager.cc

Index: components/offline_pages/core/offline_page_storage_manager.cc
diff --git a/components/offline_pages/core/offline_page_storage_manager.cc b/components/offline_pages/core/offline_page_storage_manager.cc
index efe9ec2f8565d61abf519493038cc680b9a19527..1c17729f768a8a9ef7f47b617f86d169f46fe9b6 100644
--- a/components/offline_pages/core/offline_page_storage_manager.cc
+++ b/components/offline_pages/core/offline_page_storage_manager.cc
@@ -93,7 +93,6 @@ void OfflinePageStorageManager::GetPageIdsToClear(
     const MultipleOfflinePageItemResult& pages,
     const ArchiveManager::StorageStats& stats,
     std::vector<int64_t>* page_ids_to_clear) {
-  // TODO(romax): See how persistent should be considered here.
   // Creating a map from namespace to a vector of page items.
   // Sort each vector based on last accessed time and all pages after index
   // min{size(), page_limit} should be deleted.