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

ios/chrome/browser/sessions/BUILD.gn

Index: ios/chrome/browser/sessions/BUILD.gn
diff --git a/ios/chrome/browser/sessions/BUILD.gn b/ios/chrome/browser/sessions/BUILD.gn
index 5e7154f555e48202790d7789a25a1839e57d513c..a64f3a85d34ffcd7f27017e0b2d952cafe593188 100644
--- a/ios/chrome/browser/sessions/BUILD.gn
+++ b/ios/chrome/browser/sessions/BUILD.gn
@@ -24,76 +24,3 @@
     "//url",
   ]
 }
-
-source_set("sessions_internal") {
-  sources = [
-    "NSCoder+Compatibility.h",
-    "NSCoder+Compatibility.mm",
-    "session_service.h",
-    "session_service.mm",
-    "session_util.h",
-    "session_util.mm",
-    "session_window.h",
-    "session_window.mm",
-    "tab_restore_service_delegate_impl_ios.h",
-    "tab_restore_service_delegate_impl_ios.mm",
-    "tab_restore_service_delegate_impl_ios_factory.h",
-    "tab_restore_service_delegate_impl_ios_factory.mm",
-    "tab_restore_service_delegate_provider_impl.h",
-    "tab_restore_service_delegate_provider_impl.mm",
-  ]
-  deps = [
-    "//base",
-    "//components/keyed_service/core",
-    "//components/keyed_service/ios",
-    "//components/sessions",
-    "//ios/chrome/browser/browser_state",
-    "//ios/chrome/browser/tabs",
-    "//ios/chrome/browser/ui:browser_list",
-    "//ios/public/provider/chrome/browser/sessions",
-    "//ios/web",
-    "//net",
-  ]
-  libs = [ "UIKit.framework" ]
-}
-
-source_set("test_support") {
-  testonly = true
-  sources = [
-    "test_session_service.h",
-    "test_session_service.mm",
-  ]
-  deps = [
-    ":sessions_internal",
-  ]
-}
-
-source_set("unit_tests") {
-  testonly = true
-  sources = [
-    "session_service_unittest.mm",
-    "session_window_unittest.mm",
-  ]
-  deps = [
-    ":resources_unit_tests",
-    ":sessions_internal",
-    "//base",
-    "//ios/chrome/browser",
-    "//ios/chrome/browser/browser_state:test_support",
-    "//ios/web",
-    "//ios/web:test_support",
-    "//testing/gtest",
-    "//third_party/ocmock",
-  ]
-}
-
-bundle_data("resources_unit_tests") {
-  visibility = [ ":unit_tests" ]
-  testonly = true
-  sources = [
-    "//ios/chrome/test/data/sessions/corrupted.plist",
-  ]
-  outputs = [
-    "{{bundle_resources_dir}}/ios/chrome/test/data/sessions/{{source_file_part}}",
-  ]
-}