BUG: Coverity resrouce leak in itkQuadEdgeTest1.
BUG: Coverity resrouce leak in itkQuadEdgeTest1.

Fix covertity bug reported as: CID 1081081 (#1 of 8): Resource leak
(RESOURCE_LEAK) 8. leaked_storage: Variable "quadEdge1" going out of scope
leaks the storage it points to.

Change-Id: Ieb026e5d4917524396a783d3504c3f893790087e

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