test: remove low-value model-catalog mirror tests

These tests asserted that hardcoded curated model lists/constants still
contained specific model strings (e.g. 'glm-5' in provider_model_ids('zai'),
exact context-length values per model key, PROVIDER_TO_MODELS_DEV entries).
They mirror a constant rather than exercise logic, so they only ever break
when models are added/retired and never catch a real bug.

Removed 22 such functions across 7 files (149 deletions, 0 additions).
Behavioral siblings are kept: live-catalog-wins, fallback ordering,
substring/longest-match resolution, normalization, credential discovery,
and probe-tier stepping all still tested.

tests/hermes_cli/test_gmi_provider.py

@@ -80,14 +80,6 @@ class TestGmiConfigRegistry:
 
 
 class TestGmiModelCatalog:
-    def test_static_model_fallback_exists(self):
-        assert "gmi" in _PROVIDER_MODELS
-        models = _PROVIDER_MODELS["gmi"]
-        assert "zai-org/GLM-5.1-FP8" in models
-        assert "deepseek-ai/DeepSeek-V3.2" in models
-        assert "moonshotai/Kimi-K2.5" in models
-        assert "anthropic/claude-sonnet-4.6" in models
-
     def test_canonical_provider_entry(self):
         slugs = [p.slug for p in CANONICAL_PROVIDERS]
         assert "gmi" in slugs
@@ -267,11 +259,6 @@ class TestGmiModelMetadata:
 
 
 class TestGmiAuxiliary:
-    def test_aux_default_model(self):
-        from agent.auxiliary_client import _get_aux_model_for_provider
-
-        assert _get_aux_model_for_provider("gmi") == "google/gemini-3.1-flash-lite-preview"
-
     def test_resolve_provider_client_uses_gmi_aux_default(self, monkeypatch):
         monkeypatch.setenv("GMI_API_KEY", "gmi-test-key")