Fix removing contact photo using LDAP addressbook (#1488420)

Aleksander Machniak

2012-06-13 afaccf14287d06eb7bb5e33cf131b14289040865

 program/include/rcube_ldap.php

@@ -1191,8 +1191,11 @@
                    else if ($val == '') {
                        // Field supplied is empty, verify that it is not required.
                        if (!in_array($fld, $this->prop['required_fields'])) {
                            // It is not, safe to clear.
                            $deletedata[$fld] = $old_data[$fld];
                            // ...It is not, safe to clear.
                            // #1488420: Workaround "ldap_mod_del(): Modify: Inappropriate matching in..."
                            // jpegPhoto attribute require an array() here. It looks to me that it works for other attribs too
                            $deletedata[$fld] = array();
                            //$deletedata[$fld] = $old_data[$fld];
                        }
                    }
                    else {