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

Change-Id: I1351be9a62852c2e8d045db55ecda46b06fd60d9
diff --git a/Android.bp b/Android.bp
index 00d1382..ba3267c 100644
--- a/Android.bp
+++ b/Android.bp
@@ -163,9 +163,6 @@
             cppflags: ["-D__ANDROID_DEBUGGABLE__"],
         },
     },
-    whole_static_libs: [
-        "libc++fs",
-    ],
 }
 
 cc_binary {