ClassView: Remove unnecessary private class

Change-Id: Ib0b67b01604d3abc7d2a30dd3841fa4a46775a4e
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>
ClassView: Remove unnecessary ui file

It was just containing a tree view anyhow

Change-Id: Ied34e370be4dca0a113a861cafc0a8dac5689db7
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>