Revert "graphqlbackend: support async deletion of external service (#34701) (!35289) · Merge requests · Administrator / sourcegraph · GitLab

Administrator requested to merge backend-integration/revert-34701 into main May 11, 2022

Created by: jhchabran

This reverts commit 3ff2175a349cc5fa2e30f509e0d5dc03ca1a1651.

Test plan

Revert, so backend-integration should be green (it should fix https://buildkite.com/sourcegraph/sourcegraph/builds/146879#9a24c280-2a3c-421f-b1a5-b5c6871b20db)