Remove hack for RobotoFontLoader import path issue.

ios/third_party/material_roboto_font_loader_ios/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.
 
-# TODO(crbug.com/673904): Version v1.1.1 of material_components_ios uses a
-# CocoaPods path to access MaterialTypography.h which breaks Chromium build.
-# This variable protects the workaround so that it is clear what needs to be
-# updated once upstream code has been fixed.
-use_material_typography_workaround = true
-
 config("material_roboto_font_loader_ios_config") {
   include_dirs = [ "src/src" ]
   visibility = [ ":material_roboto_font_loader_ios" ]
-
-  if (use_material_typography_workaround) {
-    include_dirs += [ "local_src" ]
-  }
 }
 
 source_set("material_roboto_font_loader_ios") {
   sources = [
     "src/src/MDCTypographyAdditions/MDFRobotoFontLoader+MDCTypographyAdditions.h",
     "src/src/MDCTypographyAdditions/MDFRobotoFontLoader+MDCTypographyAdditions.m",
     "src/src/MDFRobotoFontLoader.h",
     "src/src/MDFRobotoFontLoader.m",
     "src/src/MaterialRobotoFontLoader.h",
   ]
@@ skipping 24 matching lines @@
     "src/src/MaterialRobotoFontLoader.bundle/Roboto-Medium.ttf",
     "src/src/MaterialRobotoFontLoader.bundle/Roboto-MediumItalic.ttf",
     "src/src/MaterialRobotoFontLoader.bundle/Roboto-Regular.ttf",
     "src/src/MaterialRobotoFontLoader.bundle/Roboto-Thin.ttf",
     "src/src/MaterialRobotoFontLoader.bundle/Roboto-ThinItalic.ttf",
   ]
   outputs = [
     "{{bundle_resources_dir}}/MaterialRobotoFontLoader.bundle/{{source_file_part}}",
   ]
 }