Since October 2015 flag history page provides filters for various flag outcomes:
links which can be used to easily see declined, disputed, helpful, etc outcomes of your flags...
These changes were made to make the long flag history page a bit easier to maneuver.
In July 2016 (network wide in August) it became possible to cancel (retract) flags. This added a new kind of outcome to the flag history - in unfiltered page such flags are marked as "self-removed".
Currently there is no way to filter flag history page by cancelled flags outcome:
Suggest to add a link allowing to filter flag history by cancelled flags just like it is done for other kind outcomes.