fixed unittest

Author: chenkasirer

tests/compas/test_plugins.py

@@ -71,8 +71,5 @@ def test_importer_fail_silently():
     is_importable = importer.check_importable("compas")
     assert is_importable
 
-    is_importable = importer.check_importable("Rhino")
-    assert not is_importable
-
-    is_importable = importer.check_importable("Grasshopper")
+    is_importable = importer.check_importable("module_which_does_not_exist")
     assert not is_importable