Can't cache javascript that is supposed to run

From the CaptureHelper docu¹
```
WARNING: content_for is ignored in caches. So you shouldn't use it for elements that will be fragment cached.
```

¹ https://api.rubyonrails.org/classes/ActionView/Helpers/CaptureHelper.html#method-i-content_for

app/views/conferences/show.html.haml

@@ -64,7 +64,6 @@
       = render 'social_media', contact: @conference.contact
   = render 'footer'
 
-- cache [@conference.color, '#splash#inlinejs'] do
 - content_for :script_head do
   :javascript
     var triangle_tcs = tinycolor("#{h(@conference.color)}").monochromatic();