Remove UploadTypeCheck concern
Summary
The UploadTypeCheck concern has been superseded by a new concern that filters based on content type rather than matching content type with file extension.
There's no longer a need for the UploadTypeCheck as noted in the MR review.
Improvements
Remove obsolete code.
Risks
Might need it again in the future.
Involved components
spec/support/shared_contexts/upload_type_check_shared_context.rb spec/uploaders/upload_type_check_spec.rb app/uploaders/upload_type_check.rb
Optional: Intended side effects
Happier developers.
/cc @mkozono