Simplify the thunk targets since we don't support apps as components

mojo/gles2/gles2_impl_export.h

Index: mojo/gles2/gles2_impl_export.h
diff --git a/mojo/gles2/gles2_impl_export.h b/mojo/gles2/gles2_impl_export.h
deleted file mode 100644
index 3299ced152eadcb023041e87c3113f6d6130c51f..0000000000000000000000000000000000000000
--- a/mojo/gles2/gles2_impl_export.h
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright 2014 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 MOJO_GLES2_GLES2_IMPL_EXPORT_H_
-#define MOJO_GLES2_GLES2_IMPL_EXPORT_H_
-
-#if defined(COMPONENT_BUILD)
-#if defined(WIN32)
-
-#if defined(MOJO_GLES2_IMPL_IMPLEMENTATION)
-#define MOJO_GLES2_IMPL_EXPORT __declspec(dllexport)
-#else
-#define MOJO_GLES2_IMPL_EXPORT __declspec(dllimport)
-#endif
-
-#else  // !defined(WIN32)
-
-#if defined(MOJO_GLES2_IMPL_IMPLEMENTATION)
-#define MOJO_GLES2_IMPL_EXPORT __attribute__((visibility("default")))
-#else
-#define MOJO_GLES2_IMPL_EXPORT
-#endif
-
-#endif  // defined(WIN32)
-
-#else // defined(COMPONENT_BUILD)
-#define MOJO_GLES2_IMPL_EXPORT
-#endif
-
-#endif  // MOJO_GLES2_GLES2_IMPL_EXPORT_H_