Don't assume "Open Perspective" is nested in "Window"

In SWTBot tests

Change-Id: I61fbdef3b49ba220c3502edfba11668117dec823
diff --git a/tests/org.eclipse.emf.parsley.tests.swtbot/src/org/eclipse/emf/parsley/tests/EmfParsleySWTBotAbstractTests.java b/tests/org.eclipse.emf.parsley.tests.swtbot/src/org/eclipse/emf/parsley/tests/EmfParsleySWTBotAbstractTests.java
index 7f8e39c..222a65e 100644
--- a/tests/org.eclipse.emf.parsley.tests.swtbot/src/org/eclipse/emf/parsley/tests/EmfParsleySWTBotAbstractTests.java
+++ b/tests/org.eclipse.emf.parsley.tests.swtbot/src/org/eclipse/emf/parsley/tests/EmfParsleySWTBotAbstractTests.java
@@ -404,7 +404,7 @@
 				EmfParsleySwtBotTestsActivator.EMF_EDITOR_FOR_MENU_LIBRARY);
 		
 		// Change the perspective via the Open Perspective dialog
-		bot.menu("Window").menu("Open Perspective").menu("Other...").click();
+		bot.menu("Open Perspective").menu("Other...").click();
 		SWTBotShell openPerspectiveShell = bot.shell("Open Perspective");
 		openPerspectiveShell.activate();