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

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

Index: ios/chrome/browser/ui/qr_scanner/BUILD.gn
diff --git a/ios/chrome/browser/ui/qr_scanner/BUILD.gn b/ios/chrome/browser/ui/qr_scanner/BUILD.gn
index 81164915e3efaa07b44c40e484377436ba471b34..3fbb672b87483251349bc5b6685e03848aff85d7 100644
--- a/ios/chrome/browser/ui/qr_scanner/BUILD.gn
+++ b/ios/chrome/browser/ui/qr_scanner/BUILD.gn
@@ -21,67 +21,3 @@
     "{{bundle_resources_dir}}/{{source_file_part}}",
   ]
 }
-
-source_set("qr_scanner") {
-  sources = [
-    "camera_controller.h",
-    "camera_controller.mm",
-    "qr_scanner_alerts.h",
-    "qr_scanner_alerts.mm",
-    "qr_scanner_transitioning_delegate.h",
-    "qr_scanner_transitioning_delegate.mm",
-    "qr_scanner_view.h",
-    "qr_scanner_view.mm",
-    "qr_scanner_view_controller.h",
-    "qr_scanner_view_controller.mm",
-  ]
-  deps = [
-    "//base",
-    "//components/version_info",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/ui",
-    "//ios/chrome/browser/ui/icons",
-    "//ios/chrome/browser/ui/qr_scanner:assets",
-    "//ios/chrome/common:ios_app_bundle_id_prefix_header",
-    "//ios/third_party/material_components_ios",
-    "//ui/base",
-  ]
-  libs = [
-    "AVFoundation.framework",
-    "UIKit.framework",
-  ]
-}
-
-source_set("eg_tests") {
-  testonly = true
-  sources = [
-    "qr_scanner_view_controller_egtest.mm",
-  ]
-  deps = [
-    "//base",
-    "//base/test:test_support",
-    "//components/strings",
-    "//components/version_info",
-    "//ios/chrome/app:app_internal",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/ui:ui_internal",
-    "//ios/chrome/browser/ui/commands",
-    "//ios/chrome/browser/ui/icons",
-    "//ios/chrome/browser/ui/qr_scanner",
-    "//ios/chrome/browser/ui/toolbar",
-    "//ios/chrome/test/app:test_support",
-    "//ios/chrome/test/base",
-    "//ios/chrome/test/earl_grey:test_support",
-    "//ios/testing/earl_grey:earl_grey_support",
-    "//ios/third_party/earl_grey",
-    "//ios/web:test_support",
-    "//third_party/ocmock",
-    "//ui/base",
-  ]
-  libs = [
-    "AVFoundation.framework",
-    "UIKit.framework",
-  ]
-}