Fixes T11201.

Created bogus edges like this:

INSERT INTO edge (src, type, dst, dateCreated, seq) values ('PHID-TASK-vnddativbialb5p6ymis', 999999, 'quack', UNIX_TIMESTAMP(), 1);

Then ran bin/remove destroy on the relevant object.

Before the patch, destruction halted after hittin the bad edge.

After the patch, a warning is emitted but destruction continues.