NameTree: remove undefined function

6 jobs from master in 7 minutes and 27 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #106695
build

00:04:44

passed #106700
build_android

00:01:07

passed #106696
build_clang_libcpp

00:04:44

passed #106699
build_clazy

00:06:21

passed #106697
build_gcc_49

00:07:27

passed #106698
build_mingw64_fedora

00:03:21