LibGUI: Remove an unnecessarily specific inline capacity

Author: https://github.com/d1823
Commit: 2d91ba2737
Pull-request: https://github.com/SerenityOS/serenity/pull/9790
Reviewed-by: https://github.com/alimpfard ✅
Reviewed-by: https://github.com/kleinesfilmroellchen ✅

Userland/Libraries/LibGUI/SortingProxyModel.cpp

@@ -288,7 +288,7 @@ bool SortingProxyModel::is_searchable() const
     return source().is_searchable();
 }
 
-Vector<ModelIndex, 1> SortingProxyModel::matches(const StringView& searching, unsigned flags, const ModelIndex& proxy_index)
+Vector<ModelIndex> SortingProxyModel::matches(const StringView& searching, unsigned flags, const ModelIndex& proxy_index)
 {
     auto found_indices = source().matches(searching, flags, map_to_source(proxy_index));
     for (size_t i = 0; i < found_indices.size(); i++)