fixed problem in remove_out_edges_if and remove_in_edges_if in the bidir

case, was deleting edge property objects prematurely


[SVN r8545]

libs/graph

@@ -1 +1 @@
-Subproject commit 6a4400cf97dda079ed3461525e0ac3c95e8068fc
+Subproject commit 5ffd82ed128fd132be7b6316f5fc30a216268588