Remove CFX_MapPtrToPtr and templates.

BUILD.gn

 # 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.
 
 import("//build_overrides/v8.gni")
 import("//testing/test.gni")
 import("pdfium.gni")
 
 config("pdfium_common_config") {
   cflags = []
@@ skipping 712 matching lines @@
     "core/fxcrt/cfx_string_pool_template.h",
     "core/fxcrt/cfx_weak_ptr.h",
     "core/fxcrt/extension.h",
     "core/fxcrt/fx_basic.h",
     "core/fxcrt/fx_basic_array.cpp",
     "core/fxcrt/fx_basic_bstring.cpp",
     "core/fxcrt/fx_basic_buffer.cpp",
     "core/fxcrt/fx_basic_coords.cpp",
     "core/fxcrt/fx_basic_gcc.cpp",
     "core/fxcrt/fx_basic_memmgr.cpp",
-    "core/fxcrt/fx_basic_plex.cpp",
     "core/fxcrt/fx_basic_utf.cpp",
     "core/fxcrt/fx_basic_util.cpp",
     "core/fxcrt/fx_basic_wstring.cpp",
     "core/fxcrt/fx_bidi.cpp",
     "core/fxcrt/fx_bidi.h",
     "core/fxcrt/fx_coordinates.h",
     "core/fxcrt/fx_ext.h",
     "core/fxcrt/fx_extension.cpp",
     "core/fxcrt/fx_memory.h",
     "core/fxcrt/fx_safe_types.h",
     "core/fxcrt/fx_stream.h",
     "core/fxcrt/fx_string.h",
     "core/fxcrt/fx_system.h",
     "core/fxcrt/fx_ucd.h",
     "core/fxcrt/fx_ucddata.cpp",
     "core/fxcrt/fx_unicode.cpp",
     "core/fxcrt/fx_xml.h",
     "core/fxcrt/fx_xml_composer.cpp",
     "core/fxcrt/fx_xml_parser.cpp",
     "core/fxcrt/fxcrt_posix.cpp",
     "core/fxcrt/fxcrt_posix.h",
     "core/fxcrt/fxcrt_stream.cpp",
     "core/fxcrt/fxcrt_windows.cpp",
     "core/fxcrt/fxcrt_windows.h",
-    "core/fxcrt/plex.h",
     "core/fxcrt/xml_int.h",
   ]
   configs += [ ":pdfium_core_config" ]
   visibility += [ "third_party:*" ]
   deps = [
     "third_party:pdfium_base",
   ]
   public_deps = [
     "third_party:pdfium_base",
   ]
 
   if (pdf_enable_xfa) {
     sources += [
       "core/fxcrt/fx_arabic.cpp",
       "core/fxcrt/fx_arabic.h",
       "core/fxcrt/fx_arb.h",
-      "core/fxcrt/fx_basic_maps.cpp",
     ]
   }
 }
 
 static_library("fxge") {
   sources = [
     "core/fxge/android/cfpf_skiabufferfont.h",
     "core/fxge/android/cfpf_skiadevicemodule.cpp",
     "core/fxge/android/cfpf_skiadevicemodule.h",
     "core/fxge/android/cfpf_skiafilefont.h",
@@ skipping 1033 matching lines @@
       "//samples",
     ]
   }
   group("fuzzers") {
     testonly = true
     deps = [
       "//testing/libfuzzer",
     ]
   }
 }