Revert "Implement onMakeClone(const SkFontArguments& args) in class SkTypeface_fontconfig."

This reverts commit 96b1ecc25d00a3d52dcc51a788b0df0acdd1dad9.

Reason for revert: Breaking Google3, I think

Original change's description:
> Implement onMakeClone(const SkFontArguments& args) in class SkTypeface_fontconfig.
> 
> Create FontMgrFontConfigTest.cpp file to test the above function.
> 
> Change-Id: I7716355f702af3d6f25574305914f0b82a4147ce
> Reviewed-on: https://skia-review.googlesource.com/137133
> Reviewed-by: Ben Wagner <bungeman@google.com>
> Commit-Queue: Ben Wagner <bungeman@google.com>

TBR=bungeman@google.com,herb@google.com,brucewang@google.com

Change-Id: I665de46d379f1b533358f0be644814aa4bfffb33
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/137240
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Kevin Lubick <kjlubick@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 97cbf73..f3f170e 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1390,9 +1390,6 @@
     if (!fontmgr_android_enabled) {
       sources -= [ "//tests/FontMgrAndroidParserTest.cpp" ]
     }
-    if (!(skia_use_freetype && skia_use_fontconfig)) {
-      sources -= [ "//tests/FontMgrFontConfigTest.cpp" ]
-    }
     deps = [
       ":experimental_svg_model",
       ":flags",
diff --git a/gn/tests.gni b/gn/tests.gni
index 2068ae5..32c3337 100644
--- a/gn/tests.gni
+++ b/gn/tests.gni
@@ -77,7 +77,6 @@
   "$_tests/FontHostStreamTest.cpp",
   "$_tests/FontHostTest.cpp",
   "$_tests/FontMgrAndroidParserTest.cpp",
-  "$_tests/FontMgrFontConfigTest.cpp",
   "$_tests/FontMgrTest.cpp",
   "$_tests/FontNamesTest.cpp",
   "$_tests/FontObjTest.cpp",
diff --git a/src/ports/SkFontMgr_fontconfig.cpp b/src/ports/SkFontMgr_fontconfig.cpp
index e5aed18..3589ae8 100644
--- a/src/ports/SkFontMgr_fontconfig.cpp
+++ b/src/ports/SkFontMgr_fontconfig.cpp
@@ -525,21 +525,6 @@
         return info;
     }
 
-    sk_sp<SkTypeface> onMakeClone(const SkFontArguments& args) const override {
-        std::unique_ptr<SkFontData> data = this->cloneFontData(args);
-        if (!data) {
-            return nullptr;
-        }
-
-        SkString fFamilyName;
-        this->getFamilyName(&fFamilyName);
-
-        return sk_make_sp<SkTypeface_stream>(std::move(data),
-                                             fFamilyName,
-                                             this->fontStyle(),
-                                             this->isFixedPitch());
-    }
-
     ~SkTypeface_fontconfig() override {
         // Hold the lock while unrefing the pattern.
         FCLocker lock;
diff --git a/tests/FontMgrFontConfigTest.cpp b/tests/FontMgrFontConfigTest.cpp
deleted file mode 100644
index 0ecca63..0000000
--- a/tests/FontMgrFontConfigTest.cpp
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <fontconfig/fontconfig.h>
-#include "Resources.h"
-#include "SkCanvas.h"
-#include "SkFontMgr.h"
-#include "SkFontMgr_fontconfig.h"
-#include "SkTypeface.h"
-#include "Test.h"
-
-static bool bitmap_compare(const SkBitmap& ref, const SkBitmap& test) {
-    for (int y = 0; y < test.height(); ++y) {
-        for (int x = 0; x < test.width(); ++x) {
-            SkColor testColor = test.getColor(x, y);
-            SkColor refColor = ref.getColor(x, y);
-            if (refColor != testColor) {
-                return false;
-            }
-        }
-    }
-    return true;
-}
-
-DEF_TEST(FontMgrFontConfig, reporter) {
-    FcConfig* config = FcConfigCreate();
-    SkString distortablePath = GetResourcePath("fonts/Distortable.ttf");
-    FcConfigAppFontAddFile(
-        config, reinterpret_cast<const FcChar8*>(distortablePath.c_str()));
-    FcConfigBuildFonts(config);
-
-    sk_sp<SkFontMgr> fontMgr(SkFontMgr_New_FontConfig(config));
-    sk_sp<SkTypeface> typeface(fontMgr->legacyMakeTypeface("Distortable", SkFontStyle()));
-
-    SkBitmap bitmapStream;
-    bitmapStream.allocN32Pixels(64, 64);
-    SkCanvas canvasStream(bitmapStream);
-    canvasStream.drawColor(SK_ColorWHITE);
-
-    SkBitmap bitmapClone;
-    bitmapClone.allocN32Pixels(64, 64);
-    SkCanvas canvasClone(bitmapClone);
-    canvasStream.drawColor(SK_ColorWHITE);
-
-    SkPaint paintStream;
-    paintStream.setColor(SK_ColorGRAY);
-    paintStream.setTextSize(SkIntToScalar(20));
-    paintStream.setAntiAlias(true);
-    paintStream.setLCDRenderText(true);
-
-    SkPaint paintClone;
-    paintClone.setColor(SK_ColorGRAY);
-    paintClone.setTextSize(SkIntToScalar(20));
-    paintClone.setAntiAlias(true);
-    paintClone.setLCDRenderText(true);
-
-    std::unique_ptr<SkStreamAsset> distortableStream(
-        GetResourceAsStream("fonts/Distortable.ttf"));
-    if (!distortableStream) {
-        return;
-    }
-
-    const char* text = "abc";
-    const size_t textLen = strlen(text);
-    SkPoint point = SkPoint::Make(20.0f, 20.0f);
-    SkFourByteTag tag = SkSetFourByteTag('w', 'g', 'h', 't');
-
-    for (int i = 0; i < 10; ++i) {
-        SkScalar styleValue =
-            SkDoubleToScalar(0.5 + i * ((2.0 - 0.5) / 10));
-        SkFontArguments::VariationPosition::Coordinate
-            coordinates[] = {{tag, styleValue}};
-        SkFontArguments::VariationPosition
-            position = {coordinates, SK_ARRAY_COUNT(coordinates)};
-
-        paintStream.setTypeface(sk_sp<SkTypeface>(
-            fontMgr->makeFromStream(distortableStream->duplicate(),
-                                    SkFontArguments().setVariationDesignPosition(position))));
-        paintClone.setTypeface(sk_sp<SkTypeface>(
-            typeface->makeClone(SkFontArguments().setVariationDesignPosition(position))));
-
-        canvasStream.drawColor(SK_ColorWHITE);
-        canvasStream.drawText(text, textLen, point.fX, point.fY, paintStream);
-
-        canvasClone.drawColor(SK_ColorWHITE);
-        canvasClone.drawText(text, textLen, point.fX, point.fY, paintClone);
-
-        bool success = bitmap_compare(bitmapStream, bitmapClone);
-        REPORTER_ASSERT(reporter, success);
-    }
-}
\ No newline at end of file