Use native constructors instead of Guava to instantiate empty collections

It's not necessary to use Guava's helper methods when instantiating
empty collections. Just use the native constructors.

Change-Id: I7f454909b15924ee49e149edf9f053da9f718502

Documentation/dev-plugins.txt

diff --git a/Documentation/dev-plugins.txt b/Documentation/dev-plugins.txt
index 501f986..8315776 100644
--- a/Documentation/dev-plugins.txt
+++ b/Documentation/dev-plugins.txt
@@ -1804,7 +1804,7 @@
 
   @Inject
   public MyMenu(@PluginName String name) {
-    menuEntries = Lists.newArrayList();
+    menuEntries = new ArrayList<>();
     menuEntries.add(new MenuEntry("My Menu", Collections.singletonList(
       new MenuItem("My Screen", "#/x/" + name + "/my-screen", ""))));
   }