[split] Move rbenv plugin to oh-my-fish/plugin-rbenv

https://github.com/oh-my-fish/plugin-rbenv

plugins/rbenv/rbenv.fish

@@ -1,11 +0,0 @@
-function rbenv
-  set command $argv[1]
-  set -e argv[1]
-
-  switch "$command"
-  case rehash shell
-    eval (rbenv "sh-$command" $argv)
-  case '*'
-    command rbenv "$command" $argv
-  end
-end

plugins/rbenv/rbenv.load

@@ -1,49 +0,0 @@
-# Try to find rbenv by:
-# * Looking for $RBENV_BIN_ROOT/rbenv. This environment variable is specific to this plugin
-# * Looking for rbenv on $PATH
-# * Looking for rbenv in the user's home directory
-# When necessary, prepend the bin/ directory containing rbenv to our $PATH.
-if [ -e "$RBENV_BIN_ROOT/rbenv" ]
-  set rbenv_binary "$RBENV_BIN_ROOT/rbenv"
-  _prepend_path "$RBENV_BIN_ROOT"
-else if [ (which command; and command command -v rbenv) ]
-  set rbenv_binary (command command -v rbenv)
-else if [ -e "$HOME/.rbenv/bin/rbenv" ]
-  set rbenv_binary "$HOME/.rbenv/bin/rbenv"
-  _prepend_path "$HOME/.rbenv/bin"
-else
-  echo "Could not find rbenv. Make sure it's on your system path, in your home directory or set the RBENV_BIN_ROOT environment variable pointing to the directory where you unpacked rbenv."
-  exit 1
-end
-
-set -l supports_fish
-set -l supports_fish_version '0.4.0'
-set -l user_version (eval $rbenv_binary --version | sed -E 's/^rbenv ([[:digit:]\.]{2,}).*$/\1/g')
-
-if [ $user_version = $supports_fish_version ]
-  set -l supports_fish_commits '56'
-  set -l user_commits (eval $rbenv_binary --version | sed -E 's/^.+-([[:digit:]]{1,}).+$/\1/g')
-  if [ $user_commits -ge $supports_fish_commits ]
-    set supports_fish true
-  end
-else
-  set -l higher_version (echo -e "$supports_fish_version\n$user_version" | \
-                          sort --field-separator . \
-                            --key 1,1 --numeric-sort --reverse \
-                            --key 2,2 --numeric-sort --reverse \
-                            --key 3,3 --numeric-sort --reverse | \
-                          head -n 1)
-  if [ $user_version = $higher_version ]
-    set supports_fish true
-  end
-end
-
-if [ $supports_fish ]
-  status --is-interactive; and source (eval $rbenv_binary init - | psub)
-else
-  if [ "$RBENV_ROOT" ]
-    _prepend_path "$RBENV_ROOT/shims"
-  else
-    _prepend_path "$HOME/.rbenv/shims"
-  end
-end