Move ui_services_unittests into service_unittest.

services/ui/ws/ui_service_unittests_app_manifest.json

Index: services/ui/ws/ui_service_unittests_app_manifest.json
diff --git a/services/ui/ws/ui_service_unittests_app_manifest.json b/services/ui/ws/ui_service_unittests_app_manifest.json
deleted file mode 100644
index 86bcab599593ea3eee295ea7622f6dc4c18611bf..0000000000000000000000000000000000000000
--- a/services/ui/ws/ui_service_unittests_app_manifest.json
+++ /dev/null
@@ -1,21 +0,0 @@
-{
-  "name": "ui_service_unittests_app",
-  "display_name": "Mus Window Server Unittests",
-  "interface_provider_specs": {
-    "service_manager:connector": {
-      "provides": {
-        "ui:window_tree_client": [
-          "ui::mojom::WindowTreeClient"
-        ]
-      },
-      "requires": {
-        "*": [ "app" ],
-        "ui_service_unittests_app": [ "ui:window_tree_client" ],
-        "ui": [
-          "window_manager",
-          "window_tree_host_factory"
-        ]
-      }
-    }
-  }
-}