ITS#9860 fix ldapsearch memory leaks

The following free() is not necessary due to these reference has been copied to c[i].ldctl_value.bv_val

```
if ( seber ) ber_free( seber, 1 );
if ( vrber ) ber_free( vrber, 1 );
```
3 jobs for !535 with its9860 in 36 minutes and 24 seconds (queued for 1 second)
latest merge request