Remove `clang11Stdenv` (cherry picked from commit cbf99c71c6f58579174c1c7649a5421c1d2ba9b0) Change-Id: I716ce1a54f2006c4a9dc9716e8529fe7858ecebb
Remove `clang11Stdenv` (cherry picked from commit cbf99c71c6f58579174c1c7649a5421c1d2ba9b0) Change-Id: I716ce1a54f2006c4a9dc9716e8529fe7858ecebb