Revert of "Speculatively launch Service Workers on mouse/touch events."

third_party/WebKit/public/platform/WebNavigationHintType.h

Index: third_party/WebKit/public/platform/WebNavigationHintType.h
diff --git a/third_party/WebKit/public/platform/WebNavigationHintType.h b/third_party/WebKit/public/platform/WebNavigationHintType.h
deleted file mode 100644
index 06d5a82a47c95763fa590793ac560e07a719f4c1..0000000000000000000000000000000000000000
--- a/third_party/WebKit/public/platform/WebNavigationHintType.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef WebNavigationHintType_h
-#define WebNavigationHintType_h
-
-namespace blink {
-
-enum class WebNavigationHintType {
-  LinkMouseDown,
-  LinkTapUnconfirmed,
-  LinkTapDown,
-  Last = LinkTapDown
-};
-
-}  // namespace blink
-
-#endif  // WebNavigationHintType_h