remove unnecessary pass statement (follows https://trac.osgeo.org/grass/changeset/66742)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@66745 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/v.rast.stats/testsuite/test_v_rast_stats.py

@@ -19,7 +19,6 @@ class TestRastStats(TestCase):
         cls.del_temp_region()
 
     def tearDown(self):
-        pass
         self.runModule("g.remove", flags='f', type="raster", name="map_a")
         self.runModule("g.remove", flags='f', type="raster", name="map_b")
         self.runModule("g.remove", flags='f', type="raster", name="zone_map")