I deleted an API that had an outbound policy to replace the string ""
I subsequently recreated the API using the same API instance with definition "https://markcolorapi.azurewebsites.net/swagger/v1/swagger.json" which created a base definition without any policy statements.
For some reason, it still applies the outbound policy. I've checked the API as well as "All Operations" but I can't seem to find where it may be getting this rule from unless its a remnant of the one I deleted.