refactor: remove ssh-keys user-auth trigger in favor of direct check in dokku binary

plugins/ssh-keys/user-auth

@@ -1,14 +0,0 @@
-#!/usr/bin/env bash
-set -eo pipefail
-[[ $DOKKU_TRACE ]] && set -x
-source "$PLUGIN_CORE_AVAILABLE_PATH/common/functions"
-
-check_ssh_keys_user() {
-  declare desc="check user passed by user-auth for ssh-keys plugin"
-  local SSH_USER=$1 SSH_NAME=$2
-  [[ "$SSH_USER" == "root" || "$SSH_NAME" == *admin* ]] || dokku_log_fail "You must be root, or a dokku admin, to execute this command"
-}
-
-if [[ "$3" =~ (ssh-keys:add|ssh-keys:remove) ]]; then
-  check_ssh_keys_user "$@"
-fi