[site] remove unused images

[phrawzty]

This removes a small collection of apparently unused image files:

static/content/images/teasers/1 copy.jpg
static/content/images/teasers/1.jpg
static/content/images/teasers/2 copy.jpg
static/content/images/teasers/2.jpg
static/content/images/teasers/3 copy.jpg
static/content/images/teasers/3.jpg

I cannot find any trace of these files being referenced anywhere in either the devopsdays-web repo, or the devopsdays-legacy repo:

$ git remote show upstream | head -4
* remote upstream
  Fetch URL: [email protected]:devopsdays/devopsdays-web.git
  Push  URL: [email protected]:devopsdays/devopsdays-web.git
  HEAD branch: main

$ git log upstream -1 | head -3
commit 68f500ad8fe49f5235ce8f7fe555667aa30cb214
Author: Romano Roth <[email protected]>
Date:   Fri Oct 17 16:32:48 2025 +0200

$ rg -l --files-with-matches -e "(^|/)(1|2|3)\.jpg" -e "(^|/)(1|2|3) copy\.jpg" --stats | head -4

0 matches
0 matched lines
0 files contained matches

$ git remote show origin | head -4
* remote origin
  Fetch URL: [email protected]:devopsdays/devopsdays-legacy.git
  Push  URL: [email protected]:devopsdays/devopsdays-legacy.git
  HEAD branch: master

$ git log master -1 | head -3
commit 3749fdf399c74d12e66a238062c66836a896375a
Author: Bridget Kromhout <[email protected]>
Date:   Wed Jan 8 09:42:59 2020 -0600

$ rg -l --files-with-matches -e "(^|/)(1|2|3)\.jpg" -e "(^|/)(1|2|3) copy\.jpg" --stats | head -4

0 matches
0 matched lines
0 files contained matches

[netlify]

✅ Deploy Preview for devopsdays-web ready!

Name	Link
🔨 Latest commit	22552fd
🔍 Latest deploy log	https://app.netlify.com/projects/devopsdays-web/deploys/68f4fbc95542a6000828cb14
😎 Deploy Preview	https://deploy-preview-15552--devopsdays-web.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.