Remove SK_ADDING_src_ports_SkFontConfigInterface_cpp

src/ports/SkFontMgr_FontConfigInterface_factory.cpp

 /*
  * Copyright 2008 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFontConfigInterface.h"
 #include "SkFontMgr.h"
 #include "SkFontMgr_FontConfigInterface.h"
 
-#ifdef SK_ADDING_src_ports_SkFontConfigInterface_cpp
-// The code previously here is moving to SkFontConfigInterface.cpp
-#include "SkFontConfigInterface.cpp"
-#endif
-
 SkFontMgr* SkFontMgr::Factory() {
     sk_sp<SkFontConfigInterface> fci(SkFontConfigInterface::RefGlobal());
     if (!fci) {
         return nullptr;
     }
     return SkFontMgr_New_FCI(std::move(fci));
 }