fix build launcher3 src

systemUIPlugin/ExamplePlugin/Android.bp

@@ -1,24 +0,0 @@
-package {
-    // See: http://go/android-license-faq
-    // A large-scale-change added 'default_applicable_licenses' to import
-    // all of the 'license_kinds' from "frameworks_base_packages_SystemUI_license"
-    // to get the below license kinds:
-    //   SPDX-license-identifier-Apache-2.0
-    default_applicable_licenses: ["frameworks_base_packages_SystemUI_license"],
-}
-
-android_app {
-
-    name: "ExamplePlugin",
-
-    libs: ["SystemUIPluginLib"],
-
-    certificate: "platform",
-    optimize: {
-        enabled: false,
-    },
-
-    srcs: ["src/**/*.java"],
-
-    platform_apis: true,
-}