Revert "Configure BuildKit to allow plain HTTP to the local registry"

This reverts commit 1f62653118.

.gitea/workflows/server-docker-build.yml

@@ -16,22 +16,6 @@ jobs:
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
-        with:
-          # 10.0.0.246:3000 is plain HTTP (a bare LAN IP:port, no TLS cert
-          # would validate for it), but BuildKit defaults to HTTPS for any
-          # registry that isn't docker.io. This tells BuildKit specifically
-          # to skip that for this one host. NOTE: this only covers the
-          # actual build+push (BuildKit). The "Log in" step below runs a
-          # plain `docker login`, which goes through the classic Docker
-          # CLI/daemon instead of BuildKit and does NOT read this config --
-          # that one only works once the Docker daemon backing this runner
-          # has 10.0.0.246:3000 listed under "insecure-registries" in its
-          # own /etc/docker/daemon.json (then `systemctl restart docker`).
-          # That's runner-host infrastructure this repo can't configure.
-          config-inline: |
-            [registry."10.0.0.246:3000"]
-              http = true
-              insecure = true
 
       - name: Log in to local Gitea Container Registry
         uses: docker/login-action@v3