Remove QmitkFunctionality
Summary:
Remove outdated comments containing QmitkFunctionality
Also: removed whitespace, newlines and superfluous comments
Remove QmitkFunctionality from IGTTracking
Replace with QmitkAbstractView
Remove QmitkFunctionality and related classes
Remove superfluous org.mitk.gui.qt.common.legacy plugin
Test Plan: check build errors
Reviewers: kislinsk, O3 MITK Reviewer Group II, O1 MITK Reviewer Group I
Reviewed By: kislinsk, O3 MITK Reviewer Group II, O1 MITK Reviewer Group I
Subscribers: kalali, kislinsk
Maniphest Tasks: T29200
Differential Revision: https://phabricator.mitk.org/D666