Revert "Fix memory leak on certificate request attempt"

Unfortunately this did not fix the leak as I originally thought.

This reverts commit 2e9737f1184064e01b7ee0a9504d601d74ba4bf2.

diff --git a/src/libtdeldap.cpp b/src/libtdeldap.cpp
index eddd74c..8a14cc3 100644
--- a/src/libtdeldap.cpp
+++ b/src/libtdeldap.cpp
@@ -371,14 +371,12 @@
 				}
 				int retcode = ldap_initialize(&ldapconn, uri.ascii());
 				if (retcode < 0) {
-					ldap_unbind_ext_s(ldapconn, NULL, NULL);
 					if (errstr) *errstr = i18n("<qt>Unable to connect to LDAP server %1 on port %2<p>Reason: [%3] %4</qt>").arg(m_host).arg(m_port).arg(retcode).arg(ldap_err2string(retcode));
 					else KMessageBox::error(0, i18n("<qt>Unable to connect to LDAP server %1 on port %2<p>Reason: [%3] %4</qt>").arg(m_host).arg(m_port).arg(retcode).arg(ldap_err2string(retcode)), i18n("Unable to connect to server!"));
 					return -1;
 				}
 				retcode = ldap_set_option(ldapconn, LDAP_OPT_PROTOCOL_VERSION, &requested_ldap_version);
 				if (retcode != LDAP_OPT_SUCCESS) {
-					ldap_unbind_ext_s(ldapconn, NULL, NULL);
 					if (errstr) *errstr = i18n("<qt>Unable to connect to LDAP server %1 on port %2<p>Reason: [%3] %4</qt>").arg(m_host).arg(m_port).arg(retcode).arg(ldap_err2string(retcode));
 					else KMessageBox::error(0, i18n("<qt>Unable to connect to LDAP server %1 on port %2<p>Reason: [%3] %4</qt>").arg(m_host).arg(m_port).arg(retcode).arg(ldap_err2string(retcode)), i18n("Unable to connect to server!"));
 					return -1;