fixup! ERP5Security: cleanup. fix indentation and remove unused import.

product/ERP5Security/ERP5UserManager.py

@@ -18,8 +18,6 @@
 from Products.ERP5Type.Globals import InitializeClass
 from AccessControl import ClassSecurityInfo
 from AccessControl.AuthEncoding import pw_validate
-from AccessControl.SecurityManagement import getSecurityManager,\
-    setSecurityManager, newSecurityManager
 from Products.PageTemplates.PageTemplateFile import PageTemplateFile
 from Products.PluggableAuthService.PluggableAuthService import \
     _SWALLOWABLE_PLUGIN_EXCEPTIONS