Bug 697027 - 12 - minor memory leaks found by Valgrind + TET
    
    https://bugzilla.redhat.com/show_bug.cgi?id=697027
    [Case 12]
    Description: The caller of valuearray_remove_value is responsible
    for freeing the removed value.  Adding slapi_value_free to free it.
    
    (cherry picked from commit e227048e66a3215431a6dc9902b540b342f99d44)