twBRLinePop( aHandles )
 ----------------------------------------------------------------------------
     Release memory assigned to handles stored in aHandles which was
     created with twBRMouseLine() and pop the twInfoLine() from the
     TSDWIN Area Message stack. If you use twAMPop() before this
     function, you will get the stack out of order. Make sure you nest
     your calls to twInfoLine() and twBRMouseLine() properly.

       Arguments:

     aHandles - 'A' Array of handles returned from twBRMouseLine()

       Return:

     NIL

       Example:

     twBRLinePop( aHandles )