Split Mandoline-specific components out of mojo:core_services.

mandoline/services/core_services/BUILD.gn

Index: mandoline/services/core_services/BUILD.gn
diff --git a/mandoline/services/core_services/BUILD.gn b/mandoline/services/core_services/BUILD.gn
index 0f2fe0602c9f0399ff83d3d19c476d2dd84624f1..db14fa26946879b136d6821baa4e8a95b9a9f6f6 100644
--- a/mandoline/services/core_services/BUILD.gn
+++ b/mandoline/services/core_services/BUILD.gn
@@ -76,13 +76,4 @@ source_set("sources") {
   } else {
     sources += [ "application_delegate_factory_default.cc" ]
   }
-
-  if (use_aura) {
-    deps += [
-      "//components/mus/public/cpp",
-      "//mandoline/ui/desktop_ui:lib",
-      "//mandoline/ui/omnibox:lib",
-    ]
-    sources += [ "application_delegate_factory_aura.cc" ]
-  }
 }