Revert "[cloud] Fix upsert of organization owned external services (#28806)"
Created by: mrnugget
This reverts commit f92f8c5e79e2daaffef201764a8c642073965775 because it broke the build on main.
Example failure: https://buildkite.com/sourcegraph/sourcegraph/builds/120398#af1cea8c-1884-476d-b075-c6406dc96da5