Remove unnecessary deps in material_components_ios.

ios/third_party/material_components_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.
 
 import("//build/config/locales.gni")
 
 config("config") {
   visibility = [ ":material_components_ios" ]
   include_dirs = [
     "src/components/AppBar/src",
@@ skipping 250 matching lines @@
   libs = [
     "CoreGraphics.framework",
     "CoreText.framework",
     "QuartzCore.framework",
     "UIKit.framework",
   ]
 
   deps = [
     ":material_collections_bundle",
     ":material_component_ic_arrow_back_bundle",
-
-    # TODO(crbug.com/673904): remove when the migration to MDFRobotoFontLoader
-    # is complete.
-    "//ios/third_party/material_roboto_font_loader_ios",
     "//ios/third_party/material_text_accessibility_ios",
   ]
 
   foreach(icon_name, _icon_names) {
     deps += [ ":material_component_${icon_name}_bundle" ]
   }
 
   public_configs = [ ":config" ]
 
   configs -= [ "//build/config/compiler:chromium_code" ]
@@ skipping 66 matching lines @@
     ]
   }
 }
 
 foreach(icon_name, _icon_names) {
   material_component_icon_bundle("material_component_${icon_name}_bundle") {
     visibility = [ ":material_components_ios" ]
     icon_name = "$icon_name"
   }
 }