Fix the DumpTest extra test to remove the charset/collation.

With the Types2 Removal from the SQL-layer, the Blob columns no longer need/have charset or collations. 

This merge request will need to be pulled (rather than sent through the merger process) because of the dependency on the Type2 removal branch.  

This may not be the correct manner of fixing this problem, we may want to add the charset/collation attributes to the BLOB fields. This is the quick fix.