prevent builds view from freezing

updateToolbarActions gets called repeatedly from BuildPlan.merge, and
makes calls into ModelServiceImple which freeze Eclipse for several
seconds. It doesn't seem that updateToolbarActions is needed anyway.

Change-Id: I832bcd378ebb88965aba6bbb784b1721f5aee1bd
diff --git a/org.eclipse.mylyn.builds.ui/src/org/eclipse/mylyn/internal/builds/ui/view/BuildsView.java b/org.eclipse.mylyn.builds.ui/src/org/eclipse/mylyn/internal/builds/ui/view/BuildsView.java
index d0e1a38..7cb9c8f 100644
--- a/org.eclipse.mylyn.builds.ui/src/org/eclipse/mylyn/internal/builds/ui/view/BuildsView.java
+++ b/org.eclipse.mylyn.builds.ui/src/org/eclipse/mylyn/internal/builds/ui/view/BuildsView.java
@@ -710,7 +710,6 @@
 			setTopControl(messageComposite);
 		}
 		updateDecoration(status);
-		updateToolbarActions();
 	}
 
 	public void updateDecoration(IStatus status) {
@@ -761,11 +760,6 @@
 		});
 	}
 
-	public void updateToolbarActions() {
-		// updates each action (SelectionChangedListeners) by setting selection to current selection
-		viewer.setSelection(viewer.getSelection());
-	}
-
 	@Override
 	public Object getAdapter(@SuppressWarnings("rawtypes") Class adapter) {
 		if (adapter == IShowInTargetList.class) {