Android.bp: remove obsolete Android build number bits

They were not acheiving anything.

Change-Id: I57d47fe747a4efe7c50f995e03afd78ec5391f67
Signed-off-by: Giuliano Procida <[email protected]>
diff --git a/Android.bp b/Android.bp
index a5cf21c..2216dfa 100644
--- a/Android.bp
+++ b/Android.bp
@@ -40,13 +40,11 @@
     ],
     cpp_std: "c++20",
     cflags: [
-        "-DUSE_ANDROID_BUILD_NUMBER",
         "-fexceptions",
         "-Wno-error=unused-parameter",
     ],
     static_libs: [
         "libbpf",
-        "libbuildversion",
         "libdw",
         "libelf",
         "libicuuc",