Clang-Tidy and Clazy fixes

src/playlist/playlistlistmodel.cpp

@@ -132,7 +132,7 @@ void PlaylistListModel::RowsAboutToBeRemoved(const QModelIndex &parent, const in
         const int id = idx.data(Role_PlaylistId).toInt();
         QMap<int, QStandardItem*>::iterator it = playlists_by_id_.find(id);
         if (it != playlists_by_id_.end() && it.value() == item) {
-          playlists_by_id_.erase(it);
+          playlists_by_id_.erase(it);  // clazy:exclude=strict-iterators
         }
         break;
       }