remove mw1058 from dsh groups

broken hardware, was disabled in pybal,
but _please_ also remove from dsh
or scap'ers will get errors

please revert after it's back in the pool

RT #7408
RT #7435

Change-Id: Ifa46bafcd270b899955e4bc5c6401eaa1d9b79b2
Merge "remove mw1058 from dsh groups" into production