Ignore this old test; this convention is not used anymore, AFAIK

Change-Id: I06ea306a09cce016f043aac1c4e0021ebabcaa2c
Signed-off-by: John May <john.wilkinsonmay@gmail.com>
Empty targets are also a problem for the substructure search. Simple checks avoids the infinite loop.

Signed-off-by: Egon Willighagen <egonw@users.sourceforge.net>