Remove playground redirect link (#17181)

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,6 +1,6 @@
 ## Description
 
-<!-- Please provide a brief summary of your changes: -->
+<!-- Please provide a brief summary of your changes -->
 
 ## Checklist
 
@@ -11,7 +11,3 @@
 - [ ] (If changing the API or CLI) I’ve documented the changes I’ve made (in the `docs/` directory).
 - [ ] (If the change is user-facing) I’ve added my changes to `changelog_unreleased/*/XXXX.md` file following `changelog_unreleased/TEMPLATE.md`.
 - [ ] I’ve read the [contributing guidelines](https://github.com/prettier/prettier/blob/main/CONTRIBUTING.md).
-
-<!-- Please DO NOT remove the playground link -->
-
-**✨[Try the playground for this PR](https://prettier.io/playground-redirect)✨**

website/static/playground-redirect.html

@@ -1,35 +0,0 @@
-<!doctype html>
-<html>
-  <head>
-    <meta charset="utf-8" />
-    <title>Redirecting…</title>
-  </head>
-  <body>
-    <h1>Redirecting…</h1>
-    <p>
-      Redirecting you to the appropriate playground. If the redirect doesn’t
-      work, <a href="javascript:history.back()">go back to the PR</a> and click
-      the appropriate link:<br />
-      <img
-        src="https://cdn.netlify.com/f0b93f3003d5669924b6e73540bbfe07bc3d8d95/34c5d/img/blog/deploy-preview-workflow.gif"
-        alt="click on the link next to 'deploy/netlify'"
-      />
-    </p>
-    <script>
-      const match =
-        /^https:\/\/github\.com\/prettier\/prettier\/pull\/(\d+)/.exec(
-          document.referrer,
-        );
-      if (match != null) {
-        const [, /* url */ pr] = match;
-        location.replace(
-          `https://deploy-preview-${pr}--prettier.netlify.app/playground`,
-        );
-      } else {
-        const el = document.createElement("p");
-        el.textContent = `The referrer URL (${document.referrer}) was not recognized. Sorry :(`;
-        document.body.appendChild(el);
-      }
-    </script>
-  </body>
-</html>