Unused variable $supported_formats in ResourceRoutes.php, rest module

quietone → credited alexpott → .

quietone → credited antojose → .

quietone → credited himanshu_sindhwani → .

quietone → credited jungle → .

quietone → credited mradcliffe → .

quietone → credited nijolawrence → .

quietone → credited rpayanm → .

Closed earlier issue #3157984: Unused variables in Rest module → as a duplicate and adding credit.