Refactor the various delete methods out of dastart().  Cleans up a bunch of style and adds more modularity and clarity.
Refactor the various delete methods out of dastart().  Cleans up a bunch
of style and adds more modularity and clarity.

Obtained from:	Netflix
MFC after:	3 days

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase