Bug 327925 Deprecate EPartService's deactivate(MPart) method
It has been marked as @noreference for some time. Now that part activation history has been implemented and the hidePart(*) methods have been altered to take care of this, the deactivate(MPart) method should be removed.
tests/org.eclipse.e4.ui.tests/src/org/eclipse/e4/ui/tests/application/EPartServiceTest.java
application.setSelectedElement(windowA);
		MPartStack stack = BasicFactoryImpl.eINSTANCE.createPartStack();
		windowB.getChildren().add(stack);
		windowB.setSelectedElement(stack);
		MPart partA = BasicFactoryImpl.eINSTANCE.createPart();
		MPart partB = BasicFactoryImpl.eINSTANCE.createPart();
		stack.getChildren().add(partA);
		stack.getChildren().add(partB);
		stack.setSelectedElement(partA);
		initialize(applicationContext, application);
		getEngine().createGui(windowA);
		getEngine().createGui(windowB);
		EPartService partServiceA = (EPartService) windowA.getContext().get(
				EPartService.class.getName());
		EPartService partServiceB = (EPartService) windowB.getContext().get(
				EPartService.class.getName());
		PartListener partListener = new PartListener();
		partServiceA.addPartListener(partListener);
		partServiceB.activate(partB);
		assertEquals(0, partListener.getDeactivated());
		assertEquals(0, partListener.getDeactivatedParts().size());
		assertTrue(partListener.isValid());
		partListener.clear();
		partServiceB.activate(partA);
		assertEquals(0, partListener.getDeactivated());
		assertEquals(0, partListener.getDeactivatedParts().size());
		assertTrue(partListener.isValid());
	}
	public void testEvent_PartHidden() {
		MApplication application = createApplication("partFront", "partBack");