ITS#7922 delete dead code

Harmless, but stupid.

servers/slapd/back-ldap/modify.c

@@ -75,10 +75,6 @@ ldap_back_modify(
 		mods[ i ].mod_type = ml->sml_desc->ad_cname.bv_val;
 
 		if ( ml->sml_values != NULL ) {
-			if ( ml->sml_values == NULL ) {	
-				continue;
-			}
-
 			for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ )
 				/* just count mods */ ;
 			mods[ i ].mod_bvalues =