[services] Backup - Remove unnecessary brackets in unit test
Summary:
Depends on D4503
Removing redundant brackets in generating functions
Test Plan: cd services && yarn run-unit-tests backup
Reviewers: tomek, karol
Reviewed By: tomek, karol
Subscribers: ashoat, tomek, adrian, atul, karol, abosh
Differential Revision: https://phab.comm.dev/D4504