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

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

Index: ios/chrome/browser/ui/downloads/BUILD.gn
diff --git a/ios/chrome/browser/ui/downloads/BUILD.gn b/ios/chrome/browser/ui/downloads/BUILD.gn
index eafa4b44e4397c445fe9b41974699969f96fd9a5..033ec0cb900dc02239dafaeea3122e19b6ff3857 100644
--- a/ios/chrome/browser/ui/downloads/BUILD.gn
+++ b/ios/chrome/browser/ui/downloads/BUILD.gn
@@ -32,49 +32,3 @@
 bundle_data_ib_file("download_manager_controller_xib") {
   source = "resources/DownloadManagerController.xib"
 }
-
-source_set("downloads") {
-  sources = [
-    "download_manager_controller.h",
-    "download_manager_controller.mm",
-  ]
-  deps = [
-    "//base",
-    "//components/strings",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/native_app_launcher",
-    "//ios/chrome/browser/native_app_launcher:native_app_launcher_internal",
-    "//ios/chrome/browser/ui",
-    "//ios/chrome/browser/ui/alert_coordinator",
-    "//ios/chrome/browser/ui/colors",
-    "//ios/chrome/browser/ui/downloads:assets",
-    "//ios/chrome/browser/ui/downloads:download_manager_controller_xib",
-    "//ios/chrome/browser/web:web_internal",
-    "//ios/public/provider/chrome/browser",
-    "//ios/public/provider/chrome/browser/native_app_launcher",
-    "//ios/third_party/material_components_ios",
-    "//ios/third_party/material_roboto_font_loader_ios",
-    "//ios/web",
-    "//ios/web:core",
-    "//net",
-    "//ui/base",
-    "//ui/gfx",
-  ]
-  libs = [ "UIKit.framework" ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-  sources = [
-    "download_manager_controller_unittest.mm",
-  ]
-  deps = [
-    ":downloads",
-    "//base",
-    "//ios/chrome/browser",
-    "//ios/web:test_support",
-    "//net:test_support",
-    "//testing/gtest",
-  ]
-}