Code review comment for lp:~gang65/ubuntu-system-settings/ubuntu-system-settings-remove-retry-button

Unfortunately I don't know why it is failing.

On my second MR, which is adding only README file, the problem is similar:
https://code.launchpad.net/~gang65/ubuntu-system-settings/ubuntu-system-settings-readme-fix/+merge/274811

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/ubuntu_system_settings/tests/test_system_updates.py", line 65, in test_check_for_updates_area
    Eventually(NotEquals(True)))
  File "/usr/lib/python3/dist-packages/testtools/testcase.py", line 423, in assertThat
    raise mismatch_error
testtools.matchers._impl.MismatchError: After 10.0 seconds test on Base.visible failed: True == dbus.Boolean(True, variant_level=1)