test(e2e/claude_code): drop pr_gate unit tests for compat models

Registration lives in the session conftest fixture; pr_gate unit tests
are being removed from this tree

tests/e2e/claude_code/_pr_gate_unit_tests/test_compat_models.py

@@ -1,75 +0,0 @@
-"""Unit tests for the compat matrix deployment loader and yaml drift checks."""
-
-from __future__ import annotations
-
-import re
-from pathlib import Path
-
-import pytest
-
-from claude_code._compat_models import (
-    all_expected_model_names,
-    load_all_deployments,
-)
-
-CLAUDE_CODE_DIR = Path(__file__).resolve().parents[1]
-
-
-def _cell_declared_model_names() -> frozenset[str]:
-    pattern = re.compile(r'"(claude-[a-zA-Z0-9._-]+)"')
-    found: set[str] = set()
-    for path in CLAUDE_CODE_DIR.glob("*/test_*.py"):
-        if path.parent.name.startswith("_"):
-            continue
-        for match in pattern.finditer(path.read_text()):
-            name = match.group(1)
-            if "/" in name or "@" in name:
-                continue
-            found.add(name)
-    return frozenset(found)
-
-
-def test_yaml_covers_every_cell_declared_model_name() -> None:
-    yaml_names = all_expected_model_names()
-    cell_names = _cell_declared_model_names()
-    missing = cell_names - yaml_names
-    assert not missing, (
-        f"compat cells reference model names not declared in "
-        f"test_config.yaml: {sorted(missing)}. Add a matching "
-        f"model_list entry so the session fixture can register them."
-    )
-
-
-def test_yaml_has_no_unused_declarations() -> None:
-    yaml_names = all_expected_model_names()
-    cell_names = _cell_declared_model_names()
-    unused = yaml_names - cell_names
-    assert not unused, (
-        f"test_config.yaml declares model names no cell references: "
-        f"{sorted(unused)}. Delete them or add the cell."
-    )
-
-
-def test_load_returns_fifteen_deployments() -> None:
-    assert len(load_all_deployments()) == 15
-
-
-def test_deployments_are_hashable_and_frozen() -> None:
-    d = load_all_deployments()[0]
-    with pytest.raises((AttributeError, TypeError)):
-        d.model_name = "mutated"  # type: ignore[misc]
-
-
-def test_vertex_yaml_keys_populate_pydantic_body() -> None:
-    vertex = tuple(d for d in load_all_deployments() if d.model_name.endswith("-vertex"))
-    assert vertex, "no vertex deployments found in yaml"
-    for d in vertex:
-        assert d.litellm_params.vertex_project, (
-            f"{d.model_name} lost its vertex_project after normalization"
-        )
-        assert d.litellm_params.vertex_location, (
-            f"{d.model_name} lost its vertex_location after normalization"
-        )
-        assert d.litellm_params.use_in_pass_through is True, (
-            f"{d.model_name} must set use_in_pass_through for the passthrough row"
-        )