refactor: Remove 'SwitchClassType' class
refactor: Remove 'SwitchClassType' class

Remove the 'SwitchClassType' class from the 'Inventory' class since the
switch related classes now manages those details.

Change-Id: I6690b50da553ef8f2303a1a3f4bc03cac6c740f6

open-power-ref-design-toolkit/cluster-genesis,open-power-ref-design-toolkit/cluster-genesis