Remove duplicate body reference
Created by: caugustus-sourcegraph
https://github.com/sourcegraph/sourcegraph/pull/37490 introduced an error by duplicating the body parameter.
Test plan
CI tests pass
Created by: caugustus-sourcegraph
https://github.com/sourcegraph/sourcegraph/pull/37490 introduced an error by duplicating the body parameter.
CI tests pass