nanotool: Remove cpp_std: c++11

Bug: 236877636
Test: make nanotool -j24

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
Change-Id: I0ff1481d841f5d49346264aa7140ec097d2718ad
diff --git a/util/nanotool/Android.bp b/util/nanotool/Android.bp
index bf8b320..b43271b 100644
--- a/util/nanotool/Android.bp
+++ b/util/nanotool/Android.bp
@@ -49,7 +49,6 @@
         "libutils",
     ],
 
-    cpp_std: "c++11",
     cflags: [
         "-Wall",
         "-Werror",