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

ios/chrome/app/safe_mode/BUILD.gn

Index: ios/chrome/app/safe_mode/BUILD.gn
diff --git a/ios/chrome/app/safe_mode/BUILD.gn b/ios/chrome/app/safe_mode/BUILD.gn
index 947affb02528419f4b4d477498ed81aaad11cea3..17b18e6bf814ef4f2fe1d7d9115fdb81579a6f7c 100644
--- a/ios/chrome/app/safe_mode/BUILD.gn
+++ b/ios/chrome/app/safe_mode/BUILD.gn
@@ -12,62 +12,3 @@
     "{{bundle_resources_dir}}/{{source_file_part}}",
   ]
 }
-
-source_set("safe_mode") {
-  sources = [
-    "safe_mode_coordinator.h",
-    "safe_mode_coordinator.mm",
-    "safe_mode_view_controller.h",
-    "safe_mode_view_controller.mm",
-  ]
-
-  deps = [
-    "//base",
-    "//ios/chrome/app",
-    "//ios/chrome/app/safe_mode:resources",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/crash_report",
-    "//ios/chrome/browser/ui",
-    "//ios/chrome/browser/ui/fancy_ui",
-    "//ui/gfx",
-  ]
-
-  libs = [ "UIKit.framework" ]
-}
-
-source_set("eg_tests") {
-  testonly = true
-  sources = [
-    "safe_mode_egtest.mm",
-  ]
-  deps = [
-    ":safe_mode",
-    "//base",
-    "//ios/chrome/app:app_internal",
-    "//ios/chrome/app/strings",
-    "//ios/chrome/browser/ui/main",
-    "//ios/chrome/test/base",
-    "//ios/chrome/test/earl_grey:test_support",
-    "//ios/third_party/earl_grey",
-  ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-  sources = [
-    "safe_mode_coordinator_unittest.mm",
-    "safe_mode_view_controller_unittest.mm",
-  ]
-  deps = [
-    ":safe_mode",
-    "//base",
-    "//breakpad:client",
-    "//ios/chrome/browser/crash_report",
-    "//ios/chrome/test/base",
-    "//ios/chrome/test/ocmock",
-    "//testing/gtest",
-    "//third_party/ocmock",
-  ]
-  libs = [ "UIKit.framework" ]
-}