BREAKING: make Worker.deno unstable (#5128)

This commit makes "Worker.deno" option unstable.

Added new manual entry "docs/runtime/workers.md".

Removed stale workers tests.

1 files changed, 0 insertions, 6 deletions

diff --git a/cli/tests/040_worker_blob.ts b/cli/tests/040_worker_blob.ts
deleted file mode 100644
index 1ba4528cf..000000000
--- a/cli/tests/040_worker_blob.ts
+++ /dev/null
@@ -1,6 +0,0 @@
-const b = new Blob(["console.log('code from Blob'); postMessage('DONE')"]);
-const blobURL = URL.createObjectURL(b);
-const worker = new Worker(blobURL);
-worker.onmessage = (): void => {
-  Deno.exit(0);
-};