The source project of this merge request has been removed.
ev-document-info: add IGNORE_DEPRECATED guards around GTime usage
The usage is to warranty backwards-compatibility, and the
info->creation_date and info->modified_date properties are already
marked for deprecation. This however makes it more clear the
code that should be removed once we break the API in the GTK4 move, and avoids some deprecation warnings when compiling with -Wdeprecated-declarations.