libc++fs is part of libc++ now.

Change-Id: I02b51868f82b31ef44838ce1336a091dfe003de1
diff --git a/Android.bp b/Android.bp
index dadc331..d784d5b 100644
--- a/Android.bp
+++ b/Android.bp
@@ -188,7 +188,6 @@
         "libprotobuf-cpp-lite-ndk",
         "liblog",
         "tensorflow_abseil",
-        "libc++fs", // used by filesystem
     ],
     whole_static_libs: [
         "libfederatedcompute",