OF-1262 correct error message on failed admin console login

src/i18n/openfire_i18n_en.properties

@@ -1084,8 +1084,7 @@ login.title=Admin Console
 login.hint=Admin Console Login
 login.error=Error: You don't have JavaScript enabled. This tool uses JavaScript and much of it will \
         not work correctly without it enabled. Please turn JavaScript back on and reload this page.
-login.failed.unauthorized=Login failed: make sure your username and password are correct and that you're an admin \
-        or moderator.
+login.failed.unauthorized=Login failed: make sure your username and password are correct and that you're an admin.
 login.failed.connection=Login failed: make sure your the user and group system is up and running.
 login.failed.authentication=Login failed: Openfire wasn't able to authenticate itself to the users system.
 login.failed.lookslikeemail=Login failed: You provided what appears to be an email address, consider \