remove erroneous input file in test

Change-Id: Icf7e48617d1cda0d6e2e2a83ff6969e657e77007
COMP: Fix signed/unsigned comparison warnings for test

Change-Id: I7700f9046f26ba7c1ce1969c9b9f6f58efc76938
Merge topic 'SIMPLEITK-516_AddLabelShapeStatisticsImageFilter' into next

698a6f08 COMP: Fix signed/unsigned comparison warnings for test
32e5ea1c remove erroneous input file in test