C++17 is the default now.

Test: builds
Change-Id: Ieb3cf0a0c035e1b2fcea4a5e80bb0c1df473349f
diff --git a/Android.bp b/Android.bp
index 7aaacb1..a1d6d9a 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,6 +1,5 @@
 cc_defaults {
     name: "bpf_defaults",
-    cpp_std: "c++17",
     cflags: [
         "-Wall",
         "-Werror",