Text entities added representing non existing labels on the display module.

[koenhendriks]

Describe the bug
The display module has no default top label and regular label. They have dynamical labels that can be put on any x or y of the display. Currently by default 2 labels are added for each button bar, but this shouldn't happen for the display buttons.

To Reproduce
Steps to reproduce the behavior:

1. Install the integration through Hass
2. Add the button+ integration in Home assistant
3. See text entities label0, label1, top label 0 and top label 1 under the 'Display Module' device.

Expected behavior

1. Install the integration through Hass
2. Add the button+ integration in Home assistant
3. Don't see any text entities under the 'Display Module' device.

Screenshots