Removes application registered with name from the list of applications
that have registered a bookmark for uri inside bookmark.
In the event the URI cannot be found, FALSE is returned and
error is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND.
In the event that no application with name app_name has registered
a bookmark for uri, FALSE is returned and error is set to
G_BOOKMARK_FILE_ERROR_APP_NOT_REGISTERED.
Since 2.12
Removes application registered with name from the list of applications that have registered a bookmark for uri inside bookmark. In the event the URI cannot be found, FALSE is returned and error is set to G_BOOKMARK_FILE_ERROR_URI_NOT_FOUND. In the event that no application with name app_name has registered a bookmark for uri, FALSE is returned and error is set to G_BOOKMARK_FILE_ERROR_APP_NOT_REGISTERED. Since 2.12