chore: remove todo storage client grpc flag

[bgdnvk]

You already pushed this into main so this TODO shouldn't be here.

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[bgdnvk]

From the logs:

    --- FAIL: TestRetryConformance/http-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1 (0.01s)
    --- PASS: TestRetryConformance/grpc-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1 (0.57s)

looks like an http insert has failed

[tritone]

From the logs:

    --- FAIL: TestRetryConformance/http-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1 (0.01s)
    --- PASS: TestRetryConformance/grpc-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1 (0.57s)

looks like an http insert has failed

This is most likely a test flake; I'll rerun.

[bgdnvk]

Failed again, might be an edge case since all others pass

--- FAIL: TestRetryConformance/http-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1 (0.03s) from what i understand it's just an http connection and the client options haven't changed, the flag wasn't used there - perhaps in another test somehow? can dig more into it but im unfamiliar with the codebase

[bgdnvk]

The one failing is from the "earliest version"

[15:09:59 PDT] Child job: cloud-devrel/client-libraries/go/google-cloud-go/presubmit/latest-version finished with status: SUCCEEDED Url: https://source.cloud.google.com/results/invocations/e91b0f84-8d26-4ccd-a4c9-977173d74780
[15:10:34 PDT] Child job: cloud-devrel/client-libraries/go/google-cloud-go/presubmit/earliest-version finished with status: FAILED Url: https://source.cloud.google.com/results/invocations/9b23c3c7-4126-432c-8aab-6d45e97fbc5c

however from the successful run we have

=== RUN   TestRetryConformance/http-2-[return-reset-connection_return-reset-connection]-storage.objects.insert-1
    retry_conformance_test.go:634: want success, got Writer.Close: Post "http://localhost:9000/upload/storage/v1/b/bucket-20240517-79706071112773-0116/o?alt=json&ifGenerationMatch=0&name=new-object.txt&prettyPrint=false&projection=full&uploadType=multipart": write tcp 127.0.0.1:58030->127.0.0.1:9000: write: broken pipe