Cleanup Android.bp:framework-virtualization

There are a bunch of variables that are already set in the
framework-module-defaults, so there is no need to duplicate them.

Also disable the JavaApiUsedByMainlineModule check, since we are not an
updatable module we don't need it, and it's quite spammy.

As a side effect of this change our tests & demo apks need to compile
against framework-virtualization.impl library (which includes the hidden
APIs). Once the APIs are promoted to @SystemApi we can change the tests
to compile against framework-virtualization (which contains the API
stubs).

Bug: 243512044
Test: presubmit
Change-Id: Ib614d266f7a9cb8517afccd4feb737068b51fb20
diff --git a/javalib/Android.bp b/javalib/Android.bp
index 04ed273..9be0e9d 100644
--- a/javalib/Android.bp
+++ b/javalib/Android.bp
@@ -12,19 +12,10 @@
 
 java_sdk_library {
     name: "framework-virtualization",
-    installable: false,
-    compile_dex: true,
 
     // TODO(b/243512044): introduce non-updatable-framework-module-defaults
-
     defaults: ["framework-module-defaults"],
 
-    shared_library: false,
-
-    default_to_stubs: false,
-
-    dist_group: "android",
-
     jarjar_rules: "jarjar-rules.txt",
 
     srcs: ["src/**/*.java"],
@@ -43,43 +34,30 @@
         "com.android.system.virtualmachine.sysprop",
     ],
     errorprone: {
-        // We use @GuardedBy and we want a test failure if our locking isn't consistent with it.
         enabled: true,
         javacflags: [
+            // We use @GuardedBy and we want a test failure if our locking isn't consistent with it.
             "-Xep:GuardedBy:ERROR",
+            // JavaApiUsedByMainlineModule is quite spammy, and since we com.android.virt is not
+            // an updatable module we don't need it.
+            "-Xep:JavaApiUsedByMainlineModule:OFF",
         ],
     },
 
-    public: {
-        enabled: true,
-        sdk_version: "module_current",
-    },
-
-    system: {
-        enabled: true,
-        sdk_version: "module_current",
-    },
-
-    module_lib: {
-        enabled: true,
-        sdk_version: "module_current",
-    },
-
     test: {
         enabled: true,
         sdk_version: "module_current",
     },
 
     sdk_version: "core_platform",
-    platform_apis: true,
     impl_only_libs: [
         "framework",
     ],
     impl_library_visibility: [
-        "//frameworks/base",
+        "//packages/modules/Virtualization:__subpackages__",
     ],
 
-    // Temporary workaround, will be removed in a follow-up child cl.
+    // TODO(b/243512044): remove once we have API tracking files in prebuilts/sdk
     unsafe_ignore_missing_latest_api: true,
 }