revert llmobs api key and forced agentless (#585)

Author: sabrenner

datadog_lambda/wrapper.py

@@ -49,14 +49,10 @@
 if profiling_env_var:
     from ddtrace.profiling import profiler
 
-llmobs_api_key = None
 llmobs_env_var = os.environ.get("DD_LLMOBS_ENABLED", "false").lower() in ("true", "1")
 if llmobs_env_var:
-    from datadog_lambda.api import get_api_key
     from ddtrace.llmobs import LLMObs
 
-    llmobs_api_key = get_api_key()
-
 logger = logging.getLogger(__name__)
 
 DD_FLUSH_TO_LOG = "DD_FLUSH_TO_LOG"
@@ -226,10 +222,7 @@ def __init__(self, func):
 
             # Enable LLM Observability
             if llmobs_env_var:
-                LLMObs.enable(
-                    agentless_enabled=True,
-                    api_key=llmobs_api_key,
-                )
+                LLMObs.enable()
 
             logger.debug("datadog_lambda_wrapper initialized")
         except Exception as e: