Fix error when accessing /filters/:id/statuses on glitch-soc (#1837)

I failed to account for glitch-soc's theming system when merging
from upstream.

app/views/filters/statuses/index.html.haml

@@ -1,6 +1,3 @@
-- content_for :header_tags do
-  = javascript_pack_tag 'admin', async: true, crossorigin: 'anonymous'
-
 - content_for :page_title do
   = t('filters.statuses.index.title')
   \-