Ticket 49134  Remove hardcoded elements from db lock test
    
    Bug Description:  Autotuning broke the dblock test, that expect
    our default cache to be hardcoded.
    
    Fix Description:  Remove the (pointless) check for our dbcache
    value.
    
    https://pagure.io/389-ds-base/issue/49134
    
    Author: wibrown
    
    Review by: mreynolds (Thanks!)