Removes file from owner's AF array.
public bool RemoveAssociatedFile(CosDictionary owner, PdfFileSpecification file)
The dictionary the file is associated with.
The associated file, as read from ReadAssociatedFiles(CosDictionary, CosReference?) or created by CreateEmbeddedFile(String, ReadOnlySpan<Byte>, PdfEmbeddedFileOptions?).
true when the file was associated with the owner and is no longer.ISO 32000-2 §14.13. An AF left empty is removed. The file specification stays an object of the document (see
RemoveEmbeddedFile(String)). A mutation: no read may run concurrently with it.