Revert^2 "Define FeatureFlagsService."

This revert contains one small fix: The prior change included
changes in core/java/Android.bp and a corresponding line in
services/flags/Android.bp that causes problems in
StrictJavaPackagesTest
#testBootClasspathAndSystemServerClasspath_nonDuplicateClasses

Specifically resulting in this bug being filed: http://b/290929382


de960774a08274e68a4021e706f7611f0c0a880e

Bug: 279054964
Change-Id: Ia2ac95bb22144ff8be84c711604db72d039a814d
diff --git a/services/flags/Android.bp b/services/flags/Android.bp
new file mode 100644
index 0000000..2d0337dc
--- /dev/null
+++ b/services/flags/Android.bp
@@ -0,0 +1,17 @@
+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_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: ["frameworks_base_license"],
+}
+
+java_library_static {
+    name: "services.flags",
+    defaults: ["platform_service_defaults"],
+    srcs: [
+        "java/**/*.java",
+    ],
+    libs: ["services.core"],
+}