move builders in chromium.swarm to chromium.dev

No-Try: true
Bug: 955013
Change-Id: Id0c8835aa3af57b770d501d5010c9f456318fefa
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2029398
Commit-Queue: Takuto Ikuta <[email protected]>
Auto-Submit: Takuto Ikuta <[email protected]>
Reviewed-by: Yoshisato Yanagisawa <[email protected]>
Cr-Commit-Position: refs/heads/master@{#736761}
8 files changed