[GREENFOOT-608] Remove 'Paste image' function from 'Edit' menu
This function seems oddly out of place here. Choosing a new image is handled in the setImage dialogue. There is already a 'Create image' and 'Import from file' here; we can add a 'Use image from Clipboard' here. Not in a main menu.
- Issue type: Bug
- Priority: Medium
- Fix versions: 3.1.0