Update Android.bp to reflect aosp/2763825

Test: Ran cargo2android. Treehugger.
Change-Id: I1c318a33f2b6d7f32eea87918fa01e32e5b76a3a
diff --git a/Android.bp b/Android.bp
index 3b6dd32..d6c9d82 100644
--- a/Android.bp
+++ b/Android.bp
@@ -58,6 +58,4 @@
         "libsyn",
     ],
     compile_multilib: "first",
-    product_available: true,
-    vendor_available: true,
 }