Similar to JSC and API tests, we want to minimize the logging in buildbot and instead upload full logs to S3.
<rdar://problem/128694401>
Pull request: https://github.com/WebKit/WebKit/pull/29084
Committed 279384@main (2e51cc753a27): <https://commits.webkit.org/279384@main> Reviewed commits have been landed. Closing PR #29084 and removing active labels.
Committed 272448.1063@safari-7618-branch (155cb2c1f16f): <https://commits.webkit.org/272448.1063@safari-7618-branch> Reviewed commits have been landed. Closing PR #1322 and removing active labels.