Remove legacy Argeo Suite based on Eclipse 4.
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/ActiveFeature.java
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/SuiteMsg.java
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/parts/AbstractSuiteDashboard.java
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/parts/DefaultDashboardEditor.java
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/parts/EntitySingleColumnLabelProvider.java
- [DH] org.argeo.suite.e4/src/org/argeo/suite/e4/parts/QuickSearchView.java