Fix validation for Elastic Search and PostGIS

[KevinMcGee]

Elastic Search and PostGIS are unique in that they don't require a file name. When the user chooses this as their output format, the UI needs to delete and gray out the file name. It also needs unique validation checking. There shouldn't be a check for empty filename or that the output location exists, etc. Removing them from the UI until this is done.