Figure out what problems are causing the stack dumps that generate the files. Fix whatever the root cause is.
To be honest, the priority shouldn't be stopping the file generation, it should be fixing whatever critical problem is causing SQL to stack dump in the first place.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability