Unable to disable Export to .csv format

[abhishek-ch]

Unable to disable/block user from Exporting to .csv, after removing can CSV on Superset permission from a custom role

Expected results

Export to .csv shouldn't work after removing the permission from the role.

Actual results

User can export the CSV by clicking the button

Screenshots

Removed all necessary permissions wrt to CSV but user can still export the CSV.
Permission looks below

How to reproduce the bug

1. Login as Admin user
2. Click on 'Settings > List Roles'
3. Copy the role 'Alpha'
4. Edit the copied alpha role and delete `can CSV on Superset' and save the role
5. Assign the newly created role to a user
6. Login with user details and go to charts and try to export the .csv
7. User is still able to export the CSV

Environment

latest master

Checklist

Make sure to follow these steps before submitting your issue - thank you!

• I have checked the superset logs for python stacktraces and included it here as text if there are any.
• I have reproduced the issue with at least the latest released version of superset.
• I have checked the issue tracker for the same issue and I haven't found one similar.

Additional context

This was a bug previously but it was fixed!

[duynguyenhoang]

This PR #13713 expects to fix this problem. Recently I am quite busy with different stuffs, going to check it again.

[junlincc]

@abhishek-ch let's follow up in @duynguyenhoang's PR #13713 :)