Remove legacy compose from E2E environment

[fanny-jiang]

What does this PR do?

Motivation

Additional Notes

Review checklist (to be filled by reviewers)

• [ ] Feature or bugfix MUST have appropriate tests (unit, integration, e2e)
• [ ] PR title must be written as a CHANGELOG entry (see why)
• [ ] Files changes must correspond to the primary purpose of the PR as described in the title (small unrelated changes should have their own PR)
• [ ] PR must have changelog/ and integration/ labels attached

[codecov[bot]]

Codecov Report

Merging #12604 (2891c78) into master (c228e64) will increase coverage by 0.00%. The diff coverage is 100.00%.

Flag	Coverage Δ
twemproxy	79.34% <100.00%> (+1.01%)	:arrow_up:

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[fanny-jiang]

/azp run PR Changes (Linux)

[azure-pipelines[bot]]

No pipelines are associated with this pull request.

[fanny-jiang]

/azp run PR Changes

[azure-pipelines[bot]]

Azure Pipelines successfully started running 1 pipeline(s).

[ofek]

sorry! meant just build=True