Everyone -- even "NDK" users -- gets C++14 by default now.

Bug: http://b/32019064
Test: builds
Change-Id: I87b169661620c4fd788eea7670060f5e3020e453
diff --git a/test/Android.bp b/test/Android.bp
index e0ec286..e205b75 100644
--- a/test/Android.bp
+++ b/test/Android.bp
@@ -368,7 +368,6 @@
     ],
     sdk_version: "current",
     stl: "c++_static",
-    cpp_std: "c++14",
     include_dirs: [
         // This is needed to resolve the base/ header file in libdexfile. Unfortunately there are
         // many problems with how we export headers that are making doing this the 'right' way