fix lint

Author: tomvanmele

tests/compas/geometry/test_polyhedron.py

@@ -1,8 +1,3 @@
-import pytest
-import json
-import compas
-from random import random
-from compas.geometry import Point
 from compas.geometry import Polyhedron
 from compas.itertools import pairwise
 

tests/compas/scene/test_scene.py

@@ -104,7 +104,7 @@ def test_scene_clear():
         scene = Scene()
         sceneobj1 = scene.add(Box())
         sceneobj2 = scene.add(Box(), parent=sceneobj1)
-        sceneobj3 = scene.add(Box(), parent=sceneobj2)
+        sceneobj3 = scene.add(Box(), parent=sceneobj2)  # noqa: F841
 
         assert len(scene.objects) == 3