Function delete_dpg_from_zip 

pub fn delete_dpg_from_zip(
    path: &Path,
    group: &str,
    names: Option<&[&str]>,
) -> Result<()>

Delete DPG entries for a specific group from a TRX zip archive.

When names is None or empty, the entire DPG prefix for the group is removed. When names lists specific fields, only those entries are deleted.