fixup test for cfg_editor utils to run from non-checkout, and fix names, and remove example code

Change-Id: I6224244392e2a2d0928065ba24abcbe822096084
Reviewed-on: https://forge.frm2.tum.de/review/c/secop/frappy/+/34934
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Alexander Zaft <a.zaft@fz-juelich.de>

test/conftest.py

@@ -2,20 +2,3 @@
 
 import pytest
 
-
-@pytest.fixture(scope="module")
-def constants():
-    # setup
-    class Constants:
-        ONE = 1
-        TWO = 2
-    c = Constants()
-    yield c
-    # teardown
-    del c
-
-
-# pylint: disable=redefined-builtin
-@pytest.fixture(scope="session")
-def globals():
-    return {}