[libc++] Switch over to the LLVM-wide premerge runners #141652
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The libc++ self-hosted runner infrastructure has been unstable for
a while. Instead, switch over to the runners used for the rest of
LLVM's premerge testing, which are better supported.
This also allows us to remove the "job restarter" workflow, which
isn't needed anymore since the LLVM-wide runners can't get preempted
at arbitrary times.
NOTE: This PR is exploratory only. While we do have an ideal goal to
move the libc++ runners to the common monorepo infrastructure,
there are other questions to answer before we can do that. The
goal of this PR is mainly to shake out any obvious technical
issue in making that move.
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The libc++ self-hosted runner infrastructure has been unstable for a while. Instead, switch over to the runners used for the rest of LLVM's premerge testing, which are better supported.
This also allows us to remove the "job restarter" workflow, which isn't needed anymore since the LLVM-wide runners can't get preempted at arbitrary times.
NOTE: This PR is exploratory only. While we do have an ideal goal to move the libc++ runners to the common monorepo infrastructure, there are other questions to answer before we can do that. The goal of this PR is mainly to shake out any obvious technical issue in making that move.