Remove JSON validator from DataView, DataContext, and DataQuery
Remove JSON validator from DataView, DataContext, and DataQuery

Model field validators are used to validate the value in forms and prior
to saving during a full clean. This check has proven to be redundant
since validation of these types are core to the application.

Signed-off-by: Byron Ruth <e9d71f5ee7c92d6dc9e92ffdad17b8bd49418f98@devel.io>

murphyke/avocado,murphyke/avocado,murphyke/avocado,murphyke/avocado