Refresh ChromeVox options page CSS

chrome/third_party/chromevox/BUILD.gn

Index: chrome/third_party/chromevox/BUILD.gn
diff --git a/chrome/third_party/chromevox/BUILD.gn b/chrome/third_party/chromevox/BUILD.gn
index 62e6afafa00c3f3d1255f2d6be6aa438e4a7073b..51d35c36614ab0bd0b7dc863fe152158c2299c87 100644
--- a/chrome/third_party/chromevox/BUILD.gn
+++ b/chrome/third_party/chromevox/BUILD.gn
@@ -8,22 +8,10 @@ chromevox_out_dir = "$root_out_dir/resources/chromeos/chromevox"
 
 group("chromevox_third_party_resources") {
   deps = [
-    ":chromevox_third_party_background_resources",
     ":chromevox_third_party_injected_resources",
   ]
 }
 
-copy("chromevox_third_party_background_resources") {
-  sources = [
-    "chromevox/background/chrome_shared2.css",
-    "chromevox/background/options.css",
-    "chromevox/background/options_widgets.css",
-  ]
-  outputs = [
-    "$chromevox_out_dir/chromevox/background/{{source_file_part}}",
-  ]
-}
-
 copy("chromevox_third_party_injected_resources") {
   sources = [
     "chromevox/injected/mathjax.js",