trim listed modules

servers/slapd/slapd.conf

@@ -18,8 +18,6 @@ argsfile	%LOCALSTATEDIR%/run/slapd.args
 # moduleload	back_bdb.la
 # moduleload	back_hdb.la
 # moduleload	back_ldap.la
-# moduleload	back_passwd.la
-# moduleload	back_shell.la
 
 # Sample security restrictions
 #	Require integrity protection (prevent hijacking)