Add proper pyenv support to fish

config/fish/conf.d/pyenv.fish

@@ -1,19 +0,0 @@
-if not command -s pyenv > /dev/null
-    echo "Install <github.com/yyuu/pyenv> to use 'pyenv'."
-    exit 1
-end
-
-set -l pyenv_root ""
-
-if test -z "$PYENV_ROOT"
-    set pyenv_root ~/.pyenv
-    set -x PYENV_ROOT "$pyenv_root"
-else
-    set pyenv_root "$PYENV_ROOT"
-end
-
-if status --is-login
-    set -x PATH "$pyenv_root/shims" $PATH
-    set -x PYENV_SHELL fish
-end
-command mkdir -p "$pyenv_root/"{shims,versions}