Don't write to the app directory in tests

changedetectionio/tests/conftest.py

@@ -49,9 +49,6 @@ def measure_memory_usage(request):
     s = f"Peak memory used by the test {request.node.fspath} - '{request.node.name}': {max_memory_used:.2f} MB"
     logger.debug(s)
 
-    with open("test-memory.log", 'a') as f:
-        f.write(f"{s}\n")
-
     # Assert that the memory usage is less than 200MB
 #    assert max_memory_used < 150, f"Memory usage exceeded 200MB: {max_memory_used:.2f} MB"