## Context
Stage 3 of ollama decommission. `ytdlp` had an Ollama fallback path for when
OpenRouter models failed. With ollama going away, that fallback is
inoperable — removing the variable and two env entries prevents pods from
ever attempting to hit a service that no longer exists.
## This change
- Drops `variable "ollama_host"` from stacks/ytdlp/main.tf.
- Drops the two env entries `OLLAMA_URL` and `OLLAMA_MODEL` (plus their
preceding comment) from the yt-highlights container.
- Apply: `0 added, 4 changed, 0 destroyed` — deployments rolled out fresh
env, plus benign Kyverno ndots drift (already accepted).
- Verified `kubectl get deploy -n ytdlp` no longer exposes OLLAMA_URL.
## What is NOT in this change
- OpenRouter primary path unchanged.
- config.tfvars `ollama_host` still present (stage 7 removes it).
## Test plan
### Automated
- `scripts/tg plan` → 4 in-place updates, 0 destroy.
- `scripts/tg apply` → "Apply complete! Resources: 0 added, 4 changed, 0 destroyed."
### Manual Verification
1. `kubectl get deploy -n ytdlp -o yaml | grep OLLAMA` → empty.
2. yt-highlights continues processing via OpenRouter (check container logs for
successful OpenRouter responses).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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