Remove the devices that have Random Mac from the internal memory

[1technophile]

Description:

So as to avoid to have a growing memory consumption, indeed each time these devices change their MAC it will create a new entry into the list. This increase continuously the memory consumption of the list. And as these devices can't be discovered and doesn't have interest to be white or black listed we don't store them

Checklist:

• The pull request is done against the latest development branch
• Only one feature/fix was added per PR and the code change compiles without warnings
• I accept the DCO.