Ticket 48195 - Slow replication when deleting large quantities of multi-valued attributes
    
    https://fedorahosted.org/389/ticket/48195
    
    In update resoultion for entry deletion, there is still use of valuearray_find() to find an existingvalue to update its csn.
    with the fix for ticket #346 there exists slapi_valueset_find() which uses the possibility to do a binary search on the
    values.
    Fix: do not use valuearray_find
    
    Review: Rich, Thanks
    (cherry picked from commit 09ab8c799fc3d87db7a5b3aa07eccf9b41ea43d5)
    (cherry picked from commit a980b795ac03200fd01a2d05ce568691681d50ef)