Remove expired EU notices and fix bare-pages FR Events test

The notices.md file had its entire body wrapped in an HTML comment with
three old 2023-2024 announcements. When inlined into the parent MDX page
the comment broke MDX parsing and caused a 500 on /bare/eu/usegalaxy/main/.
Cleared the file since the content is long expired. Also fixed the FR Events
test which became ambiguous after a second h2 appeared on the page.

Author: dannon

astro/tests/bare-pages.spec.ts

@@ -103,7 +103,7 @@ test.describe('Bare Pages', () => {
       const response = await page.goto('/bare/fr/events/');
       expect(response?.status()).toBe(200);
 
-      await expect(page.locator('h2')).toContainText('Galaxy France Events');
+      await expect(page.getByRole('heading', { name: 'Galaxy France Events' })).toBeVisible();
 
       // Table should be present (may have upcoming and/or recent sections)
       const table = page.locator('table.events-table').first();

content/bare/eu/usegalaxy/notices.md

@@ -1,32 +0,0 @@
-<!--
-
-<div class="alert" style="background: #fc954e;">
-
-#### **Cluster Maintenance April 8 and 9**
-
-Starting from April 8th 2024, maintenance work will take place at our compute cluster, however our headnode servers are not affected. This means:
-<li> Our website will be reachable </li>
-<li> You can start jobs and workflows </li>
-<li> Jobs can remain in 'grey' state for several days </li>
-<li> You can not upload files </li>
-<li> Interactive tools will be aborted and you can not start new ones </li>
-The maintenance should be completed by April 10th and we will resume to normal operation then. Due to backlog in the job queue, job execution can take notably longer, please refrain from inquiries.
-</div>
-
-<div class="alert" style="background: #68d4ff;">
-
-#### **Global Climate Strike on September 15th 2023**
-
-The Freiburg Galaxy team will be striking on 15.09.2023. The job queue will be paused for a few hours on Friday. This means that you will still be able to visit our website, but new jobs will not start. Running jobs will remain unaffected. For more information, please see our [blog post](https://galaxyproject.org/news/2023-09-11-climate-strike/).
-
-</div>
-
-<div class="alert" style="background: #00d084;">
-
-#### **Act, don't criminalize!**
-
-Today, 21st of April 2023, a statement in support of peaceful, but resolved protest against insufficient climate politics got released and has been signed by more than 1000 scientists from German-speaking countries in Europe. Read [why members of the Freiburg, Germany branch of Galaxy Europe endorse this initiative](https://galaxyproject.org/news/2023-04-21-act-dont-criminalize/).
-
-</div>
-
--->