sled-agent: Remove direct dpd NAT entry creation in service zone startup path - #11073

control: job assigned to worker 01KZVV9HW26M7AADPYVE0AD221 [factory aws, i-0c06b40ea687c7d8d] (queued for 25 s)
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task: starting task 0: "setup"
task: process exited: duration 19077 ms, exit code 0
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task: starting task 1: "rust-toolchain"
task: process exited: duration 8721 ms, exit code 0
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task: starting task 2: "authentication"
task: process exited: duration 30 ms, exit code 0
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task: starting task 3: "clone repository"
task: process exited: duration 7408 ms, exit code 0
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task: starting task 4: "build"
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| + [[ linux == \i\l\l\u\m\o\s ]]
| + rm -rf /var/tmp/omicron_tmp/crdb-base-build
| + unset TMPDIR
| + echo 'files in /var/tmp/omicron_tmp (none expected on success):'
| files in /var/tmp/omicron_tmp (none expected on success):
| + find /var/tmp/omicron_tmp -ls
|    258335     28 drwxr-xr-x   2 build    build       24576 Aug 12 21:09 /var/tmp/omicron_t [...]
| + rmdir /var/tmp/omicron_tmp
task: process exited: duration 1678710 ms, exit code 0
|W| found 5 output files
|W| uploading: /work/cargo-build-analysis.jsonl (1763705 bytes)
|W| uploaded: /work/cargo-build-analysis.jsonl
|W| uploading: /work/environment.json (108 bytes)
|W| uploaded: /work/environment.json
|W| uploading: /work/oxidecomputer/omicron/target/nextest/ci/junit.xml (637881 bytes)
|W| uploaded: /work/oxidecomputer/omicron/target/nextest/ci/junit.xml
|W| uploading: /tmp/nextest-run-archive.zip (3052150 bytes)
|W| uploaded: /tmp/nextest-run-archive.zip
|W| uploading: /tmp/nextest-chrome-trace.json (4003300 bytes)
|W| uploaded: /tmp/nextest-chrome-trace.json