message: DOC: Small fix in StableGraph::retain_edges
diff: @@ -741,8 +741,6 @@ impl<N, E, Ty, Ix> StableGraph<N, E, Ty, Ix>
  /// The order edges are visited is not specified.
  ///
  /// The edge indices of the removed edes are invalidated, but none other.
  - /// Edge indices are invalidated as they would be following the removal of
  - /// each edge with an endpoint in a removed edge.
  ///
  /// Computes in **O(e'')** time, **e'** is the number of affected edges,
  /// including the calls to `.remove_edge()` for each removed edge.
  