Revert "Toggle spoken feedback if two fingers are held down."

ui/chromeos/touch_exploration_controller_unittest.cc

Index: ui/chromeos/touch_exploration_controller_unittest.cc
diff --git a/ui/chromeos/touch_exploration_controller_unittest.cc b/ui/chromeos/touch_exploration_controller_unittest.cc
index 14b7a2476276767c68f2328fada1c16a3b3e6cb2..02acee73ef46aed2ca2c43d491b55a277f2f6d7d 100644
--- a/ui/chromeos/touch_exploration_controller_unittest.cc
+++ b/ui/chromeos/touch_exploration_controller_unittest.cc
@@ -298,8 +298,7 @@ class TouchExplorationTest : public aura::test::AuraTestBase {
     } else if (on && !touch_exploration_controller_.get()) {
       touch_exploration_controller_.reset(
           new ui::TouchExplorationControllerTestApi(
-              new TouchExplorationController(root_window(), &delegate_,
-                                             nullptr)));
+              new TouchExplorationController(root_window(), &delegate_)));
       cursor_client()->ShowCursor();
       cursor_client()->DisableMouseEvents();
     }