log: remove dead _resolve_log_content helper from pages.py

The HTMX log endpoints in api.py do their own localization via
_localized_content; the pages.py helper was added during the
initial localization wiring but was bypassed once HTMX rendering
landed. No call sites remain.

tests/test_localization_integration.py

@@ -327,66 +327,6 @@ def test_digest_pick_variant_uses_user_lang():
     assert ed._pick_variant(table, tone="UNKNOWN", lang="en") == "intermediate en"
 
 
-async def test_log_endpoint_serves_italian_when_user_is_italian(tmp_path):
-    """When a user with lang='it' opens /log, the served content is the
-    Italian translation, not the English original."""
-    from app.db import utcnow
-    from app.models import StrategicLog, StrategicLogTranslation, User
-
-    _, factory, setup = _build_session_factory(tmp_path)
-    await setup()
-
-    async with factory() as session:
-        session.add(User(id=10, email="it@x", tier="paid", lang="it"))
-        slog = StrategicLog(
-            generated_at=utcnow(), content="# Open\n\nDown 0.4%.",
-            model="test-model",
-            tone="INTERMEDIATE", analysis="NORMAL",
-        )
-        session.add(slog)
-        await session.commit()
-        session.add(StrategicLogTranslation(
-            log_id=slog.id, lang="it",
-            content_md="# Apertura\n\nIn calo 0,4%.",
-            generated_at=utcnow(), llm_model="m", llm_cost_usd=0.0,
-        ))
-        await session.commit()
-        log_id = slog.id
-
-    # Test the resolver directly.
-    from app.routers.pages import _resolve_log_content
-    async with factory() as session:
-        user = await session.get(User, 10)
-        content = await _resolve_log_content(session, log_id, user.lang)
-    assert "Apertura" in content
-    assert "Open" not in content
-
-
-async def test_log_endpoint_falls_back_to_english_when_no_translation(tmp_path):
-    """User lang='it' but no IT translation exists → English fallback."""
-    from app.db import utcnow
-    from app.models import StrategicLog, User
-
-    _, factory, setup = _build_session_factory(tmp_path)
-    await setup()
-
-    async with factory() as session:
-        session.add(User(id=11, email="it2@x", tier="paid", lang="it"))
-        slog = StrategicLog(
-            generated_at=utcnow(), content="# Open\n\nDown 0.4%.",
-            model="test-model",
-            tone="INTERMEDIATE", analysis="NORMAL",
-        )
-        session.add(slog)
-        await session.commit()
-        log_id = slog.id
-
-    from app.routers.pages import _resolve_log_content
-    async with factory() as session:
-        user = await session.get(User, 11)
-        content = await _resolve_log_content(session, log_id, user.lang)
-    assert "Open" in content
-
 
 async def test_patch_language_accepts_active(tmp_path):
     """PATCH /api/settings/language accepts 'en' and 'it' and persists."""