perf: remove 'always_read_redis' - adding +830ms on each llm call (#6414)

* perf: remove 'always_read_redis' - adding +830ms on each llm call

* test: cleanup codestral tests - backend api unavailable

tests/local_testing/test_caching.py

@@ -2066,46 +2066,6 @@ async def test_cache_default_off_acompletion():
     assert response3.id == response4.id
 
 
-@pytest.mark.asyncio()
-@pytest.mark.skip(reason="dual caching should first prioritze local cache")
-async def test_dual_cache_uses_redis():
-    """
-
-    - Store diff values in redis and in memory cache
-    - call get cache
-    - Assert that value from redis is used
-    """
-    litellm.set_verbose = True
-    from litellm.caching.caching import DualCache, RedisCache
-
-    current_usage = uuid.uuid4()
-
-    _cache_obj = DualCache(redis_cache=RedisCache(), always_read_redis=True)
-
-    # set cache
-    await _cache_obj.async_set_cache(key=f"current_usage: {current_usage}", value=10)
-
-    # modify value of in memory cache
-    _cache_obj.in_memory_cache.cache_dict[f"current_usage: {current_usage}"] = 1
-
-    # get cache
-    value = await _cache_obj.async_get_cache(key=f"current_usage: {current_usage}")
-    print("value from dual cache", value)
-    assert value == 10
-
-
-@pytest.mark.asyncio()
-async def test_proxy_logging_setup():
-    """
-    Assert always_read_redis is True when used by internal usage cache
-    """
-    from litellm.caching.caching import DualCache
-    from litellm.proxy.utils import ProxyLogging
-
-    pl_obj = ProxyLogging(user_api_key_cache=DualCache())
-    assert pl_obj.internal_usage_cache.dual_cache.always_read_redis is True
-
-
 @pytest.mark.skip(reason="local test. Requires sentinel setup.")
 @pytest.mark.asyncio
 async def test_redis_sentinel_caching():