Hide attachment control in the form ribbon
Currently you can’t hide the attachments controls in the ribbon. In buttons you can hide it over Control Settings > Ribbon section with the options “Show on Ribbon” Yes/No/Expression.
This function was very helpful also for attachments.
Thank you for your suggestion. In the New Responsive designer, the new ribbon is far simpler and has a new look and feel.
I will update this ticket when we have shipped the New Responsive designer for SharePoint.
Yes, please add this function. I found sometimes the button doesn't work anyway.