Revert of Add skia extension to allow setting default fontmgr on linux. Use it to allow the linux blimp clien…

skia/ext/fontmgr_default_linux.h

Index: skia/ext/fontmgr_default_linux.h
diff --git a/skia/ext/fontmgr_default_linux.h b/skia/ext/fontmgr_default_linux.h
deleted file mode 100644
index dc39b139e0329f34351b7c65ccfcd0cfca206968..0000000000000000000000000000000000000000
--- a/skia/ext/fontmgr_default_linux.h
+++ /dev/null
@@ -1,15 +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 SKIA_EXT_FONTMGR_DEFAULT_LINUX_H_
-#define SKIA_EXT_FONTMGR_DEFAULT_LINUX_H_
-
-#include "third_party/skia/include/core/SkRefCnt.h"
-#include "third_party/skia/include/core/SkTypes.h"
-
-class SkFontMgr;
-
-void SK_API SetDefaultSkiaFactory(sk_sp<SkFontMgr> fontmgr);
-
-#endif  // SKIA_EXT_FONTMGR_DEFAULT_LINUX_H_