refactor(relay): delete the SSH relay server, its build assets and tests (#27215)

* wip: delete the SSH relay server and its build, assets and tests

* wip: drop main/relay plugin conformance; WSL reader lookup test

* fix: drop the emptied relay bench; prune baselines

* test: keep the native halves of tests that also covered the relay

* chore(ci): drop shard timings for the deleted relay server tests

* fix: keep the directory listing budget that darwin terminal names now import

---------

Co-authored-by: m4air <m4air@Mac.localdomain>

.github/workflows/ssh-windows-hosts.yml

@@ -17,7 +17,6 @@ on:
       - 'src/main/ssh/ssh-hostile-host-*'
       - 'src/main/ssh/ssh-windows-host-*'
       - 'src/main/ssh/ssh-session-command-audit.ts'
-      - 'src/relay/**'
       - 'src/wsl-guest/**'
       - 'src/packages/process-host/**'
       - 'pnpm-workspace.yaml'
@@ -35,7 +34,6 @@ on:
       - 'config/patches/node-pty*'
       - 'config/patches/@vscode__windows-process-tree*'
       - 'config/scripts/build-windows-process-tree-relay-addon.mjs'
-      - 'config/scripts/relay-windows-process-tree-staging.mjs'
       - 'config/scripts/relay-windows-process-tree-prepared-addon*.mjs'
       - 'config/scripts/windows-process-tree-gyp-rebuild.mjs'
       - 'src/shared/relay-windows-breakaway-launch.ts'