Revert "Bug 579048 - Widget is disposed exception from SWTPartRenderer during unit tests for disposed toolbar entries"

This reverts commit e4d8434b1448f05d859452300671b4306fda5587.
diff --git a/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/SWTPartRenderer.java b/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/SWTPartRenderer.java
index f5c98b1..02fb269 100644
--- a/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/SWTPartRenderer.java
+++ b/bundles/org.eclipse.e4.ui.workbench.renderers.swt/src/org/eclipse/e4/ui/workbench/renderers/swt/SWTPartRenderer.java
@@ -86,17 +86,8 @@
 
 	public void setCSSInfo(MUIElement me, Object widget) {
 		// No SWT widget, nothing to style...
-		if (widget == null) {
+		if (widget == null)
 			return;
-		}
-
-		//
-		if (widget instanceof Widget) {
-			Widget swtWidget = (Widget) widget;
-			if (swtWidget.isDisposed()) {
-				return;
-			}
-		}
 
 		// Set up the CSS Styling parameters; id & class
 		IEclipseContext ctxt = getContext(me);