Revert of Upstream Chrome on iOS source code [11/11].

ios/chrome/browser/ui/colors/BUILD.gn

Index: ios/chrome/browser/ui/colors/BUILD.gn
diff --git a/ios/chrome/browser/ui/colors/BUILD.gn b/ios/chrome/browser/ui/colors/BUILD.gn
deleted file mode 100644
index f49ba7bc01d7df082718bee39f875e211fbae09c..0000000000000000000000000000000000000000
--- a/ios/chrome/browser/ui/colors/BUILD.gn
+++ /dev/null
@@ -1,14 +0,0 @@
-# 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.
-
-source_set("colors") {
-  sources = [
-    "MDCPalette+CrAdditions.h",
-    "MDCPalette+CrAdditions.mm",
-  ]
-  deps = [
-    "//ios/third_party/material_components_ios",
-    "//ios/web",
-  ]
-}