Remove no-op DANDI_ALLOW_LOCALHOST_URLS from test configs

This variable was consumed by the dandi-archive Django server to permit
`localhost` URLs in asset `contentUrl` fields during testing (where
assets are stored in a local MinIO instance). It was removed from the
test `docker-compose.yml` in commit 09c1b75 when dandi-archive switched
to `dandiapi.settings.development`, which handles this by default,
making the variable a no-op in the test environment.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: candleindark

.github/workflows/run-tests.yml

@@ -22,7 +22,6 @@ jobs:
     runs-on: ${{ matrix.os }}
     env:
       NO_ET: 1
-      DANDI_ALLOW_LOCALHOST_URLS: "1"
       DANDI_PAGINATION_DISABLE_FALLBACK: "1"
       DANDI_TESTS_PERSIST_DOCKER_COMPOSE: "1"
     strategy:

tox.ini

@@ -3,7 +3,6 @@ envlist = lint,typing,py3
 
 [testenv]
 setenv =
-    DANDI_ALLOW_LOCALHOST_URLS=1
     DANDI_PAGINATION_DISABLE_FALLBACK=1
 passenv = DANDI_*,USER,DBUS_SESSION_BUS_ADDRESS
 extras =