Permanently remove all components from a .brd?

Hello,

        I have recieved a file in which we would like to remove all components from the .brd with the exception of two connectors.  Typically I have imported a blank shematic into the .brd and it removes all components from the file.  This particular .brd is throwing an error when I import the blank logic.  The error message is as follows:

ERROR(SPMHNI-342):  Design flow is constraint manager enabled, require pstcmdb.dat and pstcmbc.dat files.

 I dont have these files.... Is there a way to get around this?  Any help would be greatly appreciated.

Thanks,

Clint