Remove logging added for debugging the lockscreen crashes.

ash/test/test_lock_state_controller_delegate.cc

Index: ash/test/test_lock_state_controller_delegate.cc
diff --git a/ash/test/test_lock_state_controller_delegate.cc b/ash/test/test_lock_state_controller_delegate.cc
index aa2d834e63e02d116804eea9d70d22155b584f35..55e46ac60473dfe9fd63a97d01b2cb0c7c6fde56 100644
--- a/ash/test/test_lock_state_controller_delegate.cc
+++ b/ash/test/test_lock_state_controller_delegate.cc
@@ -15,13 +15,6 @@ TestLockStateControllerDelegate::TestLockStateControllerDelegate()
 TestLockStateControllerDelegate::~TestLockStateControllerDelegate() {
 }
 
-bool TestLockStateControllerDelegate::IsLoading() const {
-  // There is no way for to know, since we can't include the
-  // content::WebContents definition (whose instance we can retrieve from
-  // ScreenLocker).
-  return false;
-}
-
 void TestLockStateControllerDelegate::RequestLockScreen() {
   ++num_lock_requests_;
 }