Remove output_name hacks from components/resources/BUILD.gn

This hack was added in https://codereview.chromium.org/601733002.
I planned to remove it after a few weeks, but forgot to do so.

BUG=None
TEST=build

Change-Id: Ifdfadc62f4b46fedf8e0f8dca98cb6810ed278f5
Reviewed-on: https://chromium-review.googlesource.com/880541Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Ryo Hashimoto <hashimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#531808}

components/resources/BUILD.gn

@@ -19,8 +19,6 @@ group("resources") {
 grit("components_resources") {
   source = "components_resources.grd"
 
-  # TODO(hashimoto): Remove this line.
-  output_name = "components_resources_new"
   outputs = [
     "grit/components_resources.h",
     "components_resources.pak",
@@ -44,8 +42,6 @@ grit("components_resources") {
 grit("components_scaled_resources") {
   source = "components_scaled_resources.grd"
 
-  # TODO(hashimoto): Remove this line.
-  output_name = "components_scaled_resources_new"
   outputs = [
     "grit/components_scaled_resources.h",
     "grit/components_scaled_resources_map.cc",